Only the Philosopher Knows How to Live

He knew how to hide rather than how to live ... Let a man retire and the common crowd will think of hum as leading a life apart, free of all cares, self-contented, living for himself, when in fact not one of these blessings can be won by anyone other than the philosopher. He alone knows how to live for himself: he is the one, in fact, who knows the fundamental thing, how to live. 

- Seneca, Letters from a Stoic, Letter LV