History not used is nothing, for all intellectual life is action, like practical life, and if you don't use the stuff - well, it might as well be dead.

Civilizations, I believe, come to birth and proceed to grow by successfully responding to successive challenges. They break down and go to pieces if and when a challenge confronts them that they fail to meet.

There is no such thing as gratitude in international politics.

Immaturity means self-centeredness, inability to compromise, to rise above hurt feelings, to postpone immediate pleasures in favor of future benefits, or to do unpleasant chores when they need to be done.

The penalty of affluence is that it cuts one off from the common lot, common experience, and common fellowship. In a sense it outlaws one automatically from one's birthright of membership in the great human family.

The value of the goal lies in the goal itself; and therefore the goal cannot be attained unless it is pursued for its own sake.

Write regularly, day in and day out, at whatever times of day you find that you write best. Don't wait till you feel that you are in the mood. Write, whether you are feeling inclined to write or not.