Numbers are the product of counting. Quantities are the product of measurement. This means that numbers can conceivably be accurate because there is a discontinuity between each integer and the next. Between two and three there is a jump. In the case of quantity, there is no such jump; and because jump is missing in the world of quantity, it is impossible for any quantity to be exact. You can have exactly three tomatoes. You can never have exactly three gallons of water. Always quantity is approximate.

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

Life and 'Mind' are systemic processes.

There are times when I catch myself believing that there is such a thing as something; which is separate from something else.

It is impossible, in principle, to explain any pattern by invoking a single quantity.

Language commonly stresses only one side of any interaction.

No organism can afford to be conscious of matters with which it could deal at unconscious levels.