Those who know how close the connection is between the state of mind of a man-his courage and hope, or lack of them-and the state of immunity of his body will understand that the sudden loss of hope and courage can have a deadly effect. The ultimate cause of my friend's death was that the expected liberation did not come and he was severely disappointed.

You don't create your mission in life - you detect it.

The transitoriness of our existence in now way makes it meaningless. But it does constitute our responsibleness; for everything hinges upon our realizing the essentially transitory possibilities.

Fundamentally, therefore, any man can, even under such circumstances, decide what shall become of him—mentally and spiritually. He may retain his human dignity even in a concentration camp.

It is the pursuit of happiness that thwarts happiness.

Everything can be taken from a man but one thing: the last of human freedoms - to choose one's attitude in any given set of circumstances, to choose one's own way.

It isn't the past which holds us back, it's the future; and how we undermine it, today.