The greatest of all mysteries is the man himself.

...one thing I am ready to fight for as long as I can, in word and act: that is, that we shall be better, braver and more active men if we believe it right to look for what we don't know than if we believe there is no point in looking because what we don't know we can never discover.

Are you not ashamed of your eagerness to possess as much wealth, reputation, and honors as possible, while you do not care for nor give thought to wisdom or truth, or the best possible state of your soul?

Man's life is like a drop of dew on a leaf.

There is a doctrine whispered in secret that a man is a prisoner who has no right to open the door and run away; this is a great mystery which I do not quite understand.

Why do you wonder that globetrotting does not help you, seeing that you always take yourself with you? The reason that set you wandering is ever at your heels.

Regard your good name as the richest jewel yoou can possibly be possessed of.