Nature is trying very hard to make us succeed, but nature does not depend on us. We are not the only experiment.

Unchallenged, opinions became respected precedent then exceptionless concepts and sometimes even civil and academically accepted social law.

Thinking is a momentary dismissal of irrelevancies.

Gold and silver from the dead turn often into lead.

Man is designed to be a comprehensivist .

When I am working on a problem, I never think about beauty but when I have finished, if the solution is not beautiful, I know it is wrong.

We speak erroneously of "artificial" materials, "synthetics", and so forth. The basis for this erroneous terminology is the notion that Nature has made certain things which we call natural, and everything else is "man-made", ergo artificial. But what one learns in chemistry is that Nature wrote all the rules of structuring; man does not invent chemical structuring rules; he only discovers the rules. All the chemist can do is find out what Nature permits, and any substances that are thus developed or discovered are inherently natural. It is very important to remember that.