"As for me, all I know is that I know nothing, for when I think I know something, I discover that I had no idea about it."

"The teacher in such case fears and fawns upon the pupils, and the pupils pay no heed to the teacher or to their overseers either."

"He would say that the rest of the world lived to eat, while he himself ate to live."

"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."

"By all means marry; if you get a good wife, you'll become happy; if you get a bad one, you'll become a philosopher."