America My Country: last nation on earth to abolish human slavery; first of all nations to drop the nuclear bomb on our fellow human beings.

Metaphysics is a cobweb that the mind weaves around things.

Hierarchical institutions are like giant bulldozers -- obedient to the whim of any fool who takes the controls.

If industrial man continues to multiply his numbers and expand his operations he will succeed in his apparent intention, to seal himself off from the natural and isolate himself within a synthetic prison of his own making.

One day in Dipstick, Nebraska, or Landfill, Oklahoma, is worth more to me than an eternity in Dante's plastic Paradiso, or Yeats's gold-plated Byzantium.

Balance, that's the secret. Moderate extremism. The best of both worlds.

The basic science is not physics or mathematics but biology -- the study of life. We must learn to think both logically and bio-logically.