One must be convinced to convince, to have enthusiasm to stimulate the others.

Again and again, faith in a possible satisfaction of the human race breaks through at the very moments of most zealous discord because humankind will never be able to live and work without this consoling delusion of its ascent into morality, without this dream of final and ultimate accord.

It would be foolhardy to count on the conscience of the world.

Human life is so strangely constituted that even perfected intellectual understanding combined with the richest experience is incapable of conquering innate weaknesses. Even if it thoroughly analyzes itself, psychology (and this is one of the dubious aspects of psychoanalysis) can, to be sure, recognize its flawed native characteristics, but it cannot eliminate them. Understanding (them) is not the same as overcoming (them) and, again and again, we see the wisest of human beings helpless in the fact of their small follies which everyone else observes with a smile.

There is no sense to a sacrifice after you come to feel that it is a sacrifice.

The idea of Jewish unity, of a plan, an organization, unfortunately exists only in the brains of Hitler and Streicher.

Only the person who has experienced light and darkness, war and peace, rise and fall, only that person has truly experienced life.