Resilience

Resilience has travelled a long way in twenty years, from a term in psychology to a word on posters. It originally described something measurable: a system's capacity to return to equilibrium after a shock. Applied to people it never meant being unaffected — it meant recovering, and that distinction is the first casualty of popular use.

Older writing on the subject rarely uses the word but describes it more precisely. Epictetus, who spent part of his life enslaved, does not talk about strength; he talks about separating what is in our power from what is not. The quotes gathered here mostly follow that line. They do not deny that a blow hurts — they ask what is done with it afterwards, which makes them more useful than anything demanding you feel nothing.