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.

The business of thinking ... undoes every morning what it had finished the night before.

There are no parallels to the life of the concentration camps. All seeming parallels create confusion and distract attention from what is essential. Forced labor in prisons and penal colonies, banishment, slavery, all seem for a moment to offer helpful comparisons, but on closer examination lead nowhere.

We are free to change the world and start something new in it.

To think and to be fully alive are the same.

The ultimate end of human acts is eudaimonia, happiness in the sense of living well, which all men desire; all acts are but different means chosen to arrive at it.

The human condition is such that pain and effort are not just symptoms which can be removed without changing life itself; they are the modes in which life itself, together with the necessity to which it is bound, makes itself felt. For mortals, the easy life of the gods would be a lifeless life.