Being tolerant does not mean that I share another one's belief. But it does mean that I acknowledge another one's right to believe, and obey, his own conscience.

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

Then I grasped the meaning of the greatest secret that human poetry and human thought and belief have to impart: The salvation of man is through love and in love.

A sound philosophy of life, I think, may be the most valuable asset for a psychiatrist to have when he is treating a patient.

These tasks, and therefore the meaning of life, differ from man to man, and from moment to moment. Thus it is impossible to define the meaning in life in a general way.

As the struggle for survival has subsided, the question has emerged: survival for what? Ever more people have the means to live, but no meaning to live for.

Humor was another of the soul's weapons in the fight for self-preservation.