Stoic Virtue

Virtue is the only good. Everything else is preferred or dis-preferred 'indifferents'.

For the Stoics, only your own rational judgment is truly yours. Health, wealth, reputation, even your own body, are adiaphora — indifferents. They may be preferable or not, but they cannot make you good or bad. Hence Stoic equanimity: nothing external can take from you what you alone control. The school's enduring power is that this is both extremely demanding and extremely consoling.