There have always been badasses around, and the Stoic philosophers have a reputation as being some of the original ones (think Russell Crowe in Gladiator). As part of the research for my next book project, I have been reading Seneca’s Letters From a Stoic for the first time. Seneca was a Roman philosopher and statesman, roughly a contemporary of Christ, and a tutor and advisor to the emperor Nero, at whose hands Seneca was ultimately killed.
In Letter XV, Seneca quotes Epicurus:
The life of folly is empty of gratitude, full of anxiety: it is focused wholly on the future.