"You may fetter my leg, but Zeus himself cannot get the better of my free will."

"A man is not hurt by what happens to him, but by his opinion of what happens to him."

"It is not death that a man should fear, but he should fear never beginning to live."

"If you wish for anything good, you must get it from yourself."

"Men are disturbed not by things, but by the views which they take of them."