This new war, like the previous one, would be a test of the power of machines against people and places; whatever its causes and justifications, it would make the world worse. This was true of that new war, and it has been true of every new war since... I knew too that this new war was not even new but was only the old one come again. And what caused it? It was caused, I thought, by people failing to love one another, failing to love their enemies.

The fertility cycle is a cycle entirely of living creatures passing again and again through birth, growth, maturity, death, and decay.

Properly speaking, global thinking is not possible... Look at one of those photographs of half the earth taken from outer space, and see if you recognize your neighborhood. The right local questions and answers will be the right global ones. The Amish question, what will this do to our community? tends toward the right answer for the world.

Humans, like all other creatures, must make a difference; otherwise, they cannot live. But unlike other creatures, humans must make a choice as to the kind and scale of difference they make. If they choose to make too small a difference, they diminish their humanity. If they choose to make too great a difference, they diminish nature, and narrow their subsequent choices; ultimately, they diminish or destroy themselves. Nature, then, is not only our source but also our limit and measure.

A teacher's major contribution may pop out anonymuosly in the life of some ex-student's grandchild.

A man with a machine and inadequate culture is a pestilence.

But the only possible guarantee of the future is responsible behavior in the present.