“It is very comforting to believe that leaders who do terrible things are, in fact, mad. That way, all we have to do is make sure we don't put psychotics in high places and we've got the problem solved.”

“Ask not what your country can do for you—ask what you can do for your country.”

“Those who make peaceful revolution impossible will make violent revolution inevitable.”

“The proletarians have nothing to lose but their chains. They have a world to win.”

“War may sometimes be a necessary evil. But no matter how necessary, it is always an evil, never a good. We will not learn how to live together in peace by killing each other's children.”