Think not those faithful who praise all thy words and actions, but those who kindly reprove thy faults.
There is no illness of the body except for the mind
If one knows what is right, he will do it; nobody wants to be evil
The universe really is motion & nothing else.
Every action has its pleasures and its price.
If thou continuous to take delight in idle argumentation thou mayest be qualified to combat with the sophists, but will never know how to live with men.