The condition of all who are preoccupied is wretched, but most wretched is the condition of those who labor at preoccupations that are not even their own, who regulate their sleep by that of another, their walk by the pace of another, who are under orders in case of the freest things in the world-loving and hating. If these wish to know how short their life is, let them reflect how small a part of it is their own.

That loss is most discreditable which is caused by negligence.

You are your choices.

There is no easy way from the earth to the stars.

My advice is really this: what we hear the philosophers saying and what we find in their writings should be applied in our pursuit of the happy life. We should hunt out the helpful pieces of teaching and the spirited and noble-minded sayings which are capable of immediate practical application-not far far-fetched or archaic expressions or extravagant metaphors and figures of speech-and learn them so well that words become works.

Fine conduct is always spontaneous.

It is better to have useless knowledge than to know nothing.