It is a disgrace to grow old through sheer carelessness before seeing what manner of man you may become by developing your bodily strength and beauty to their highest limit.

To fear death, my friends, is only to think ourselves wise, without being wise: for it is to think that we know what we do not know. For anything that men can tell, death may be the greatest good that can happen to them: but they fear it as if they knew quite well that it was the greatest of evils. And what is this but that shameful ignorance of thinking that we know what we do not know?

All of the wisdom of this world is but a tiny raft upon which we must set sail when we leave this earth. If only there was a firmer foundation upon which to sail, perhaps some divine word.

Remember what is unbecoming to do is also unbecoming to speak of.

I am a fool, but I know I'm a fool and that makes me smarter than you.

I am wiser than this man, for neither of us appears to know anything great and good; but he fancies he knows something, although he knows nothing; whereas I, as I do not know anything, so I do not fancy I do. In this trifling particular, then, I appear to be wiser than he, because I do not fancy I know what I do not know.

The years wrinkle our skin, but lack of enthusiasm wrinkles our soul.