"If you want to be a great writer, write great books. If you want to be a great painter, paint great pictures. But if you want to be a great philosopher, be a great human being."

"First say to yourself what you would be; and then do what you have to do."

"If you pin your hopes on things outside your control, taking upon yourself things which rightfully belong to others, you are liable to stumble, fall, suffer, and blame both gods and men."

"No man is free who is not master of himself."

"If a man has a bad smell, he knows it not, but his neighbor knows it. So too with our faults."