The chief reason warfare is still with us is neither a secret death-wish of the human species, nor an irrepressible instinct of aggression, nor, finally and more plausibly, the serious economic and social dangers inherent in disarmament, but the simple fact that no substitute for this final arbiter in international affairs has yet appeared on the political scene.

In order to go on living one must try to escape the death involved in perfectionism.

Men in plural […] can experience meaningfulness only because they can talk with and make sense to each other and themselves.

The most radical revolutionary will become a conservative the day after the revolution.

the right to marry whoever one wishes is an elementary human right ... Even political rights, like the right to vote, and nearly all other rights enumerated in the Constitution, are secondary to the inalienable human rights to 'life, liberty and the pursuit of happiness' proclaimed in the Declaration of Independence; and to this category the right to home and marriage unquestionably belongs.

The possible redemption from the predicament of irreversibility──of being unable to undo what one has done──is the faculty of forgiving. The remedy for unpredictability, for the chaotic uncertainty of the future, is contained in the faculty to make and keep promises. Both faculties depend upon plurality, on the presence and acting of others, for no man can forgive himself and no one can be bound by a promise made only to himself.

The practice of violence, like all action, changes the world, but the most probable change is a more violent world.