Much of the economic decay of southeast Asia (as of many other parts of the world) is undoubtedly due to a heedless and shameful neglect of trees.

Never let an inventor run a company. You can never get him to stop tinkering and bring something to market

There is incredible generosity in the potentialities of Nature. We only have to discover how to utilize them.

Perhaps we cannot raise the winds. But each of us can put up the sail, so that when the wind comes we can catch it.

Many people love in themselves what they hate in others

At present, there can be little doubt that the whole of mankind is in mortal danger, not because we are short of scientific and technological know-how, but because we tend to use it destructively, without wisdom. More education can help us only if produces more wisdom.

The way in which we experience and interpret the world obviously depends very much indeed on the kind of ideas that fill our minds. If they are mainly small, weak, superficial, and incoherent, life will appear insipid , uninteresting, petty and chaotic.