"I thought to myself: I am wiser than this man; neither of us probably knows anything that is really good, but he thinks he has knowledge, when he has not, while I, having no knowledge, do not think I have.,."

"You are young, my son, and, as the years go by, time will change and even reverse many of your present opinions. Refrain therefore awhile from setting yourself up as a judge of the highest matters."

"Everyone thinks because it is solely responsible for the wisdom or folly of his life, that is to say of his destiny."

"Appearance tyrannizes over truth."

"All is flux, nothing stays still."

"Beauty is certainly a soft, smooth, slippery thing, and therefore of a nature which easily slips in and permeates our souls."