Protagoras asserted that there are two sides to every question, exactly opposite to each other.
DiogenesWhen I look upon seamen, men of science and philosophers, man is the wisest of all beings; when I look upon priests and prophets nothing is as contemptible as man.
DiogenesNo man is hurt but by himself. ...Literally by how he interprets what happens to him. If he focusses on how it could have been better, he will be hurt. If he focusses on how it could have been worse, he will be happy. The same is true for women too.
Diogenes