The marvelous pharmacy that was designed by nature and placed into our being by the universal architect produces most of the medicines we need.

No one really knows enough to be a pessimist.

Of all the gifts bestowed by nature on human beings, hearty laughter must be close to the top.

More and more, the choice for the world's people is between becoming world warriors or world citizens.

The old emphasis upon superficial differences that separate peoples must give way to education for citizenship in the human community.

The real wealth, not only of America, but of the world, is in the resources of the ground we stand on, and in the resources of the humankind.

Education tends to be diagrammatic and categorical, opening up no sluices in the human imagination on the wonder of the beauty of our unique estate in the cosmos. Little wonder that it becomes so easy for our young to regard human hurt casually or to be uninspired by the magic of sensitivity.