It is to the Riddle of the Sphinx that I have devoted fifty years of professional life as an anthropologist.

We do not know enough about how the present will lead into the future.

Some tools of thought are so blunt that they are almost useless; others are so sharp that they are dangerous. But the wise man will have the use of both kinds.

The map is not the territory (coined by Alfred Korzybski), and the name is not the thing named.

Science, like art, religion, commerce, warfare, and even sleep, is based on presuppositions.

A major difficulty is that the answer to the Riddle of the Sphinx is partly a product of the answers that we already have given to the riddle in its various forms.

Official education was telling people almost nothing of the nature of all those things on the seashores, and in the redwood forests, in the deserts and in the plains.