Modern industry seems to be inefficient to a degree that surpasses one's enduring powers of imagination. Its inefficiency therefore remains unnoticed.

If I limit myself to knowledge that I consider true beyond doubt, I minimize the risk of error but I maximize, at the same time, the risk of missing out on what may be the subtlest, most important and most rewarding things in life.

A way of life that ever more rapidly depletes the power of the Earth to sustain it and piles up ever more insoluble problems for each succeeding generation can only be called violent.

Man is small, and, therefore, small is beautiful.

Man's needs are infinite, and infinitude can be achieved only in the spiritual realm, never in the material.

To describe an animal as a physico-chemical system of extreme complexityis no doubt perfectly correct, except that it misses out on the animalness of the animal.

Any intelligent fool can make things bigger and more complex... It takes a touch of genius - and a lot of courage to move in the opposite direction.