The secret of joy in work is contained in one word - excellence. To know how to do something well is to enjoy it.

It is natural anywhere that people like their own kind, but it is not necessarily natural that their fondness for their own kind should lead them to the subjection of whole groups of other people not like them.

endurance of inescapable sorrow is something which has to be learned alone. And only to endure is not enough. Endurance can be a harsh and bitter root in one's life, bearing poisonous and gloomy fruit, destroying other lives. Endurance is only the beginning. There must be acceptance and the knowledge that sorrow fully accepted brings its own gifts. For there is an alchemy in sorrow. It can be transmuted into wisdom, which, if it does not bring joy, can yet bring happiness.

He was part of a whole, a people scattered over the earth and yet eternally one and indivisible. Wherever a Jew lived, in whatever safety and isolation, he still belonged to his people.

Integrity is honesty carried through the fibres of the being and the whole mind, into thought as well as action so that the person is complete in honesty. That kind of integrity I put above all else as an essential to leadership.

when the people of any country choose peace at all costs, not even generals can make war.

Only the brave should teach....Teaching is a vocation. It is as sacred as priesthood; as innate a desire, as inescapable as the genius which compels a great artist. If he has not the concern for humanity, the love of living creatures, the vision of the priest and the artist, he must not teach.