The solution to worry must begin by understanding its cause and how it builds over time. Seneca grasped the nature of preoccupations better than most philosophers in history, but his recommendations need to be adapted to our century. Seneca attributed mental strain to the human tendency to go too far, run too quickly, and expect too much. He viewed peace of mind as the major goal of philosophy, but acknowledged the difficulty of giving up the desires that prevent tranquillity. We achieve tranquillity, Seneca argued, by becoming more realistic in our expectations. When we pursue a desirable goal, we work hard and expect to achieve it, but we should keep our expectations reasonable, especially if we are operating in harsh environments under tight constraints. Socrates (470-399 BC) had been known for his remarkable ability to stay calm under pressure. According to Plato (427-347 BC), Socrates was able to keep a cool head in the face of dire adversity; he would remain clear-headed even when things had turned dramatically for the worse. Why do so few individuals achieve tranquillity? Why does serenity remain elusive? Seneca rightly pointed out that people fail to attain tranquillity because of their reluctance to practise virtue. By “virtue,” Seneca was referring to Stoicism, that is, a combination of rationality, alertness, parsimony, contemplation and patience. Tranquillity is the outcome of good emotional hygiene, not a mysterious gift of destiny or heredity. It comes from saying no to an unbalanced lifestyle and exaggerated reactions. It rests on our commitment to Seneca’s prescriptions. Seneca’s formula for achieving tranquillity is similar to his formula for friendship: both formulas require full commitment in good and bad weather. We recognise true friends thanks to their loyalty during adversity. Similarly, we recognise effective thinkers in their ability to keep a cool head during a crisis. In his 46th Letter to Lucilius, Seneca noted that true friends are rare and that it’s foolish to count mere acquaintances as true friends. Those who engage in jovial conversation during dinner may or may not possess the potential to become true friends. I’m afraid that only time can tell if those acquaintances will become true friends or not. Seneca wisely observed that “fair-weather companions tend to vanish in times of hardship.” Seneca’s observation applies with equal rigour to achieving tranquillity. It is easy to maintain our serenity when things are going well, but superficial serenity “tends to vanish in times of hardship.” If we want to achieve and maintain our tranquillity, we need to keep practising the Stoic virtues day in and day out, not only during fair weather. In particular, we will need to stay loyal to virtue during major crises, even in life-or-death situations. Seneca implies in the 64th Letter to Lucilius that we should regard life as a path. I would point to the Taoist metaphor of a river flowing to the sea, a river that will occasionally traverse rough patches. Philosophy is a sturdy boat that enables us to navigate downstream with a minimum of trouble. Tranquillity requires that we “periodically remove all weeds from our garden,” so that our mind can operate efficiently. We should stay away from “worthless gossip and distractions” that waste our time and undermine our resolve to practise virtue. Here is the link to the original article: https://johnvespasian.com/senecas-formula-for-achieving-tranquillity/