“Forgiveness is the only way to reverse the irreversible flow of history.”

“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.”

“Exasperation with the threefold frustration of action -- the unpredictability of its outcome, the irreversibility of the process, and the anonymity of its authors -- is almost as old as recorded history. It has always been a great temptation, for men of action no less than for men of thought, to find a substitute for action in the hope that the realm of human affairs may escape the haphazardness and moral irresponsibility inherent in a plurality of agents.”

“Forgiveness is the key to action and freedom.”

“Caution in handling generally accepted opinions that claim to explain whole trends of history is especially important for the historian of modern times, because the last century has produced an abundance of ideologies that pretend to be keys to history but are actually nothing but desperate efforts to escape responsibility.”

“Only crime and the criminal, it is true, confront us with the perplexity of radical evil; but only the hypocrite is really rotten to the core.”

“War has become a luxury that only small nations can afford.”