If I cannot get men who steer a middle course to associate with, I would far rather have the impetuous and hasty. For the impetuous at any rate assert themselves.

To know is to know that you know nothing. That is the meaning of true knowledge.

If you shoot for the stars and hit the moon, it's OK. But you've got to shoot for something. A lot of people don't even shoot.

Who heeds not the future will find sorrow at hand

I have never seen one who really loves goodness or one who really hates wickedness. One who really loves goodness will not place anything above it. One who really hates wickedness will practice goodness in such a way that wickedness will have no chance to get at him. Is there anyone who has devoted his whole strength to doing good for even as long as a single day? I have not seen anyone give up such an attempt because he had not the strength to go on. Perhaps there is such a case, but I have never seen it.

Bird in hand makes it harder to blow nose.

There are three things against which the wise man guards: lust when young, quarrels when strong, and covetousness when old.