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

Our task - and the task of all education - is to understand the present world, the world in which we live and make our choices.

The real problems of our planet are not economic or technical, they are philosophical. The philosophy of unbridled materialism is being challenged by events.

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.

Not mass production but production by the masses.

Real life consists of the tensions produced by the incompatibility of opposites, each of which is needed

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.