Seneca wrote his most enduring letters while managing an empire's bureaucracy, navigating Nero's paranoia, and watching friends die in exile. He was not meditating in a quiet room. The Stoics' great underappreciated insight is that virtue isn't a feeling of calm — it's a *practice of judgment* that runs in the background of a full, noisy, imperfect life. Behavioral psychologist Roy Baumeister's research on ego depletion showed that willpower fades across decisions; but Seneca's letters suggest something different: the Stoic didn't rely on willpower at all, but on pre-committed reasoning about what actually matters. The practical move isn't to try harder when things get difficult — it's to decide, in advance and in writing, what kind of person you're trying to be, so the decision is already made before the moment demands it.

Name one recurring situation that reliably erodes your judgment — and write down, right now, what you want your response to be next time.

Drawing from Stoicism — Seneca