True opinions are a fine thing and do all sorts of good so long as they stay in their place; but they will not stay long. They run away from a man's mind, so they are not worth much until you tether them by working out the reason. Once they are tied down, they become knowledge, and are stable.

An old man is twice a child, and so is a drunken man.

If the head and the body are to be well, you must begin by curing the soul.

Let every man remind their descendants that they also are soldiers who must not desert the ranks of their ancestors, or from cowardice fall behind.

Renouncing the honors at which the world aims, I desire only to know the truth... and to the maximum of power, I exhort all other men to do the same.

And when one of them meets the other half, the actual half of himself, whether he be a lover of youth or a lover of another sort, the pair are lost in an amazement of love and friendship and intimacy and one will not be out of the other's sight, as I may say, even for a moment.

Be kind, for everyone is having a hard battle.