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

All that we know is nothing can be known.

Get married, in any case. If you happen to get a good mate, you will be happy; if a bad one, you will become philosophical, which is a fine thing in itself.

When you propose ridiculous things to believe, too many men will choose to believe nothing at all.

I desire only to know the truth, and to live as well as I can...And, to the utmost of my power, I exhort all other men to do the same...I exhort you also to take part in the great combat, which is the combat of life, and greater than every other earthly conflict.

For this fear of death is indeed the pretense of wisdom, and not real wisdom, being the appearance of knowing the unknown; since no one knows whether death, which they in their fear apprehend to be the greatest evil, may not be the greatest good.

My friend...care for your psyche...know thyself, for once we know ourselves, we may learn how to care for ourselves