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Sadler's Lectures
Lectures on classic and contemporary philosophical texts and thinkers by Gregory B. Sadler
500 episodes
2 days ago
This lecture discusses key ideas from the 20th Century rational egoist philosopher and novelist Ayn Rand's book, The Virtue Of Selfishness. It focuses specifically upon her views about how a rational egoist ought to behave and structure their life, choices, and relationships. To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler Purchase Rand's The Virtue Of Selfishness - https://amzn.to/4oUuym3
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Education
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All content for Sadler's Lectures is the property of Lectures on classic and contemporary philosophical texts and thinkers by Gregory B. Sadler and is served directly from their servers with no modification, redirects, or rehosting. The podcast is not affiliated with or endorsed by Podjoint in any way.
This lecture discusses key ideas from the 20th Century rational egoist philosopher and novelist Ayn Rand's book, The Virtue Of Selfishness. It focuses specifically upon her views about how a rational egoist ought to behave and structure their life, choices, and relationships. To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler Purchase Rand's The Virtue Of Selfishness - https://amzn.to/4oUuym3
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Education
Episodes (20/500)
Sadler's Lectures
Ayn Rand, The Virtue of Selfishness - How Should A Rational Egoist Behave - Sadler's Lectures
This lecture discusses key ideas from the 20th Century rational egoist philosopher and novelist Ayn Rand's book, The Virtue Of Selfishness. It focuses specifically upon her views about how a rational egoist ought to behave and structure their life, choices, and relationships. To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler Purchase Rand's The Virtue Of Selfishness - https://amzn.to/4oUuym3
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2 days ago
13 minutes 37 seconds

Sadler's Lectures
Ayn Rand, The Virtue of Selfishness - Consciousness, Animals, and Humans - Sadler's Lectures
This lecture discusses key ideas from the 20th Century rational egoist philosopher and novelist Ayn Rand's book, The Virtue Of Selfishness. It focuses specifically upon her discussion of the difference between other animals and human beings, which has to do with the range and types of consciousness we have. To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler Purchase Rand's The Virtue Of Selfishness - https://amzn.to/4oUuym3
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4 days ago
20 minutes 23 seconds

Sadler's Lectures
Ayn Rand, The Virtue of Selfishness - Life as a Basis for Rational Egoism - Sadler's Lectures
This lecture discusses key ideas from the 20th Century rational egoist philosopher and novelist Ayn Rand's book, The Virtue Of Selfishness. It focuses specifically upon her views about values and their grounding in Life (which for humans means a distinctively human life, not merely survival). To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler Purchase Rand's The Virtue Of Selfishness - https://amzn.to/4oUuym3
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6 days ago
14 minutes 21 seconds

Sadler's Lectures
Ayn Rand, The Virtue of Selfishness - Criticisms of Non-Rational Ethics - Sadler's Lectures
This lecture discusses key ideas from the 20th century philosopher and novelist Ayn Rand's book The Virtue of Selfishness, in particular the chapter "The Objectivist Ethics" This focuses specifically on her discussion of what she terms "non-rational" ethics, by way of contrast to her own rational egoist or "objectivist ethics". She examines what she calls the "mystic", "social", and "subjectivist" ethics, and criticizes what she views as the "false dichotomy of altruism". To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler Purchase Rand's The Virtue Of Selfishness - https://amzn.to/43pJmjU
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1 week ago
15 minutes 18 seconds

Sadler's Lectures
Why Stoics Should Not Be Indifferent to the Indifferents - Sadler's Lectures
my invited talk at the first Stoicon-X Brasil online conference. Due to technical issues, I provided a live presentation (translation provided by participants) to the conference. In this presentation, I briefly present the Stoic doctrine of the indifferents (adiaphoria), namely that Stoics view many things as neither good nor bad, but are indifferent. Some indifferents may be "preferred" or "rejected", which means that they have some positive or negative value, but not the sort of that makes us virtuous or vicious, happy or miserable. The Stoics teach that we should not be entirely indifferent to the indifferents, for several important reasons. The use (khresis or usus) of indifferents is not something indifferent, and as Epictetus tells us, is something we ought to be careful about. The virtues, as Seneca and Cicero clarify, bear upon indifferents. Texts mentioned in this talk: Marcus Aurelius' Meditations - https://amzn.to/3osPFNF Epictetus' Discourses and Enchiridion - https://amzn.to/37G6bE0 Seneca's Letters - https://amzn.to/3dZQrNk Cicero's On The Ends - https://amzn.to/3mmgJMB
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1 week ago
16 minutes 18 seconds

Sadler's Lectures
Early Christian Thinkers On Anger - Sadler's Lectures
This is my relatively short talk given during the 2025 Plato's Academy multidisciplinary conference: The Philosophy and Psychology of Anger, during which I discuss some of the useful insights and practices early Christian thinkers (2nd-5th Century CE) can provide us. These don't require one to be committed to Christianity and can be applied by a wide range of people. I begin with a passage from Pierre Hadot's book Philosophy As A Way Of Life: "[Christians] believed they recognized spiritual exercises, which they had learned through philosophy, in specific scriptural passages . . . The reason why Christian authors paid attention to these particular biblical passages, was that they were already familiar, from other sources, with the spiritual exercises of prosokhē, meditation on death, and examination of the conscience.” What Hadot calls “spiritual exercises” gets called by a variety of other terms by other thinkers. Foucault’s "technologies of the self", Nussbaum’s "therapeutic arguments", as well as the more general "philosophical practices" many of us reference in our work and study. What we can say about these early Christian thinkers is that many had a philosophical education, had opportunities to engage with pagan philosophical schools, some of which had pretty strong religious stances, with precursor and contemporary Jewish thought, and with a variety of other disciplines like rhetoric, medicine, literature, political theory, law, history, music, etc. There was already a strong interest in issues about anger already raised and debated in ancient philosophy including: vicious anger, can anger have useful role, dangers of indulging or excusing anger, anger and courage or justice, types or levels of anger, divine anger. Early Christian thinkers rely upon or incorporating broadly Platonic psychology, and ethical conceptions drawn from Platonist, Stoic, and Aristotelian schools, but within a framework Christianity provides. The thinkers I reference and discuss in this presentation include: 2nd-4th Century CE: Clement of Alexandria 150 – c. 215 AD, Tertullian 155 – c. 220, Origen 185 – c. 253, Lactantius 250 – c. 325 4th 5th century CE: Basil of Caesarea 330 – 379, Gregory of Nyssa 335, Evagrius Ponticus 345–399 AD, John Chrysostom 347-407, Ambrose 339-397, Jerome 342–347-420, Prudentius 348-413?, John Cassian 360 – 435, Augustine of Hippo 354-430 Some of the key scriptural passages they tend to engage most heavily with include: A number of discussions of anger in Pre-Christian Jewish scriptures, particularly in the Psalms, Proverbs, and Sirach The Sermon on the Mount in Matthew 5, Paul’s Letter To Ephesians, and the Letter of James There is a stress on identifying and dealing with vices that involve anger, but also on developing virtues of Patience, Humility, Mercy, and Forgiveness. They also adopt, develop, and discuss a number of useful practices for lessening, understanding, or dealing with anger.
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1 week ago
15 minutes 58 seconds

Sadler's Lectures
The Scope of Genuine Courage In Stoicism - Sadler's Lectures
This is a talk I was invited to provide to the inaugural 2021 Stoicon-X Military conference, held online. I chose as my topic the scope of genuine courage, a topic of considerable importance but also frequent misunderstandings within professions like that of the military. In this talk I discuss what courage is and what it is for, the scope of courage, including its constituent virtues, and finally the relationship between courage and the other virtues.
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1 week ago
10 minutes 5 seconds

Sadler's Lectures
How Should Stoics Respond When Bad Things Happen To Other People - Sadler's Lectures
This is the recording of my short presentation and the Q&A at the second Conversations With Modern Stoicism event, hosted in July 2023 by Phil Yanov. Asked to give a short and provocative presentation about an issue that arises in the everyday applications of Stoicism, I chose to focus on a common mistake and distortion of Stoic philosophy and practice. Quite a few people think that Stoicism means that a person shouldn't exhibit or feel care, concern, or compassion for others who experience something that they view and react to as "bad". There are indeed some passages from Stoic authors that one can take out of context to justify such a stance. But when Stoicism is rightly understood, and when we look at other, equally authoritative passages, we see that the authentic Stoic position is to be compassionate and concerned with others.
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1 week ago
14 minutes 38 seconds

Sadler's Lectures
Rainer Maria Rilke on Solitude, Slowing Down, and Making Space - Sadler's Lectures
This is a podcast of a guest sermon, given by invitation to the Unitarian Universalist Community of the Catskills. A guest sermon invited by the Unitarian Universalist Community of the Catskills, Aug 9, 2015. In it, I discuss Rainer Maria Rilke's conception of "solitude" (Einsamkeit), and its relevance to our contemporary lives. Explaining how the two dimensions of slowing down temporally and making space spatially figure into the development of solitude as Rilke describes it, I suggest that in our own era, time has become the more scarce resource. You can read a transcript of the sermon here: https://www.academia.edu/14942470/Solitude_Slowing_Down_and_Clearing_Space
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1 week ago
21 minutes 25 seconds

Sadler's Lectures
Thomas Aquinas Summa Theologiae - Knowledge As A Cause Of Love
This lecture discusses key ideas from the medieval Christian philosopher and theologian Thomas Aquinas' Summa Theologiae, 1st part, question 27, "The Causes Of Love", and examines his discussions in article 2, which centers on whether and how knowledge can be a cause of love. To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler Purchase Thomas Aquinas' Summa Theologiae - amzn.to/2ITcKYQ
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1 week ago
12 minutes 45 seconds

Sadler's Lectures
"Whoever is Angry with His Brother” Early Christian Insights on Anger - Sadler's Lectures
This is a podcast of a guest sermon, given by invitation to the Unitarian Universalist Community of Rock Tavern. In it, I discuss anger as a common problem not only of our own times, but of all times. Christian teachings on anger present us with some "hard sayings," and several 4th century thinkers -- John Cassian, Augustine of Hippo, and John Chrysostom -- are very helpful for understanding how to live with and live out these difficult requirements. A transcript of the sermon is available here: https://www.academia.edu/14942379/_And_Whoever_is_Angry_With_His_Brother_Early_Christian_Insights_A
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2 weeks ago
20 minutes 28 seconds

Sadler's Lectures
Thomas Aquinas Summa Theologiae - Likeness As A Cause Of Love
This lecture discusses key ideas from the medieval Christian philosopher and theologian Thomas Aquinas' Summa Theologiae, 1st part, question 27, "The Causes Of Love", and examines his discussions in article 3, which centers on whether and how likeness (similitudo) is a cause of love, particularly between similar people. He addresses the issue raised by the classical proverb "potter against potter" and discusses several different modes of likeness To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler Purchase Thomas Aquinas' Summa Theologiae - amzn.to/2ITcKYQ
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2 weeks ago
12 minutes 38 seconds

Sadler's Lectures
Thomas Aquinas Summa Theologiae - The Causes Of Love - Sadler's Lectures
This lecture discusses key ideas from the medieval Christian philosopher and theologian Thomas Aquinas' Summa Theologiae, 1st part, question 27, "The Causes Of Love", and examines his discussions in articles 1 and 4, which center on the issues whether goodness in some sense is a cause of love and whether any other passion is the case of love. Aquinas' answers are that in every case, some good is the cause of love, even seemingly in the case of hatred, which presumes love as well. He also clarifies that love is at the root of all the other passions, although is specific cases, love can be also caused by a specific passion. To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler Purchase Thomas Aquinas' Summa Theologiae - amzn.to/2ITcKYQ
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2 weeks ago
13 minutes 56 seconds

Sadler's Lectures
Thomas Aquinas Summa Theologiae - Love, Dilection, Charity, and Friendship - Sadler's Lectures
This lecture discusses key ideas from the medieval Christian philosopher and theologian Thomas Aquinas' Summa Theologiae, 1st part of the second part, question 26 "Of Love", and examines his discussions in articles 3-4, which center on different senses or modalities of love (amor). He makes a distinction between four terms: love, dilection (dilectio), friendship (amicitia) and charity (caritas), and discusses the differences in their application, and then examines the distinction between love of friendship and love of concupiscence (which also applies to friendships based on pleasure or utility) To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler Purchase Thomas Aquinas' Summa Theologiae - amzn.to/2ITcKYQ
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2 weeks ago
15 minutes 14 seconds

Sadler's Lectures
Thomas Aquinas Summa Theologiae - Love, The Appetites, and Passion - Sadler's Lectures
This lecture discusses key ideas from the medieval Christian philosopher and theologian Thomas Aquinas' Summa Theologiae, 1st part of the second part, question 26 "Of Love", and examines his discussions in articles 1-2, which center on determining where love is within the things and specifically within human being. Thomas will frame this in terms of nature and natural love, the sensitive concupiscible appetite and love as a passion, and the intellectual appetite or will and love as an act To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler Purchase Thomas Aquinas' Summa Theologiae - amzn.to/2ITcKYQ
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2 weeks ago
15 minutes 38 seconds

Sadler's Lectures
Thomas Aquinas Summa Theologiae - God Loving Some Things More - Sadler's Lectures
This lecture discusses key ideas from the medieval Christian philosopher and theologian Thomas Aquinas' Summa Theologiae, 1st part, question 20, "God's Love", and examines his discussions in articles 3-4, which center on the issues of whether God loves some things more than others or not, and whether God loves better things more than others. For Thomas, this centers upon a distinction about ways in which one can love more or less. One way has to do with the act of will itself, i.e. willing good to another. The other has to do with the good that is willed to the other. God can and does will more or better goods for certain things than others, so God can love some things more than others in that respect. To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler Purchase Thomas Aquinas' Summa Theologiae - amzn.to/2ITcKYQ
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3 weeks ago
16 minutes 15 seconds

Sadler's Lectures
Thomas Aquinas Summa Theologiae - God's Love For Other Things - Sadler's Lectures
This lecture discusses key ideas from the medieval Christian philosopher and theologian Thomas Aquinas' Summa Theologiae, 1st part, question 20, "God's Love", and examines his discussion in article 2, which examines the question whether God loves things other than God. Thomas considers four main lines of reasoning that would say that God either doesn't love other things or only loves some other things but not others. He then clarifies that God wills good to all things that exist, giving them the very being and goodness that they possess, so God loves all things insofar as they are. This doesn't mean that he loves all things to the same extent or in the same ways. To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler Purchase Thomas Aquinas' Summa Theologiae - amzn.to/2ITcKYQ
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3 weeks ago
16 minutes 30 seconds

Sadler's Lectures
Thomas Aquinas Summa Theologiae - Whether Love Is In God - Sadler's Lectures
This lecture discusses key ideas from the medieval Christian philosopher and theologian Thomas Aquinas' Summa Theologiae, 1st part, question 20 "God's Love", and examines on his discussion in article 1, which addresses the issue whether love is in God. Aquinas considers several arguments against love being in God and addresses each of them. He also explains how it is that love is in God by looking at how the will tends towards the universal or common good through love. To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler Purchase Thomas Aquinas' Summa Theologiae - amzn.to/2ITcKYQ
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3 weeks ago
16 minutes

Sadler's Lectures
Heloise and Abelard - Letters 5-6 - Struggling Against Passion - Sadler's Lectures
This lecture discusses key ideas from the sequence of letters between two great Medieval intellectuals, lovers, and religious Heloise D'Argenteuil and Peter Abelard It focuses specifically on the fifth and sixth letters, which are by Heloise and Abelard respectfully. In these letters both of the married lovers have opted for leaving their previous amorous and conjugal love behind and shifting their attention to God. They also both admit their ongoing struggles to see this commitment through consistently. To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler Read Heloise and Abelard's Letters - https://www.gutenberg.org/files/35977/35977-h/35977-h.htm
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3 weeks ago
19 minutes 31 seconds

Sadler's Lectures
Heloise and Abelard - Letter 4 - Love, Despair, and Repentance - Sadler's Lectures
This lecture discusses key ideas from the sequence of letters between two great Medieval intellectuals, lovers, and religious Heloise D'Argenteuil and Peter Abelard It focuses specifically on the fourth letter, which is by Heloise. In this letter Heloise reaffirms her love for her husband Abelard, and asserts that life will have little value or attraction for her after he dies. She explains what emotions she experiences, and the despair she feels about their situation, and then discusses the conflicts within her heart and mind that stand in the way of genuine and consistent repentance on her part To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler Read Heloise and Abelard's Letters - https://www.gutenberg.org/files/35977/35977-h/35977-h.htm
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4 weeks ago
13 minutes 38 seconds

Sadler's Lectures
This lecture discusses key ideas from the 20th Century rational egoist philosopher and novelist Ayn Rand's book, The Virtue Of Selfishness. It focuses specifically upon her views about how a rational egoist ought to behave and structure their life, choices, and relationships. To support my ongoing work, go to my Patreon site - www.patreon.com/sadler If you'd like to make a direct contribution, you can do so here - www.paypal.me/ReasonIO - or at BuyMeACoffee - www.buymeacoffee.com/A4quYdWoM You can find over 3500 philosophy videos in my main YouTube channel - www.youtube.com/user/gbisadler Purchase Rand's The Virtue Of Selfishness - https://amzn.to/4oUuym3