When I start having second thoughts about Stoicism, my current practice is to recall that we live in a world in which certainty is possible only in mathematics. We live, in other words, in a world in which, no matter what you do, you might be making a mistake. This means that although it is true that I might be making a mistake by practicing Stoicism, I might also be making a mistake if I reject Stoicism in favor of some other philosophy of life. And I think the biggest mistake, the one made by a huge number of people, is to have no philosophy of life at all.
