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 the YoungerWe all sorely complain of the shortness of time, and yet have much more than we know what to do with. Our lives are either spent in doing nothing at all, or in doing nothing to the purpose, or in doing nothing that we ought to do. We are always complaining that our days are few, and acting as though there would be no end of them.
Seneca the Younger