“The net result is to substitute articulate hesitation for inarticulate certainty.”

“This is a tragedy among human history, the result of large numbers of human errors. But the net of justice is omipresent, it never missed.”

“To teach how to live without certainty, and yet without being paralyzed by hesitation, is perhaps the chief thing that philosophy, in our age, can still do for those who study it.”

“It has been estimated that even in the absence of net investment, the mere substitution of modern machinery for worn-out equipment in the United States would cause an annual productivity increase of approximately 1.5 percent.”

“People who ask confidently get more than those who are hesitant and uncertain. When you've figured out what you want to ask for, do it with certainty, boldness and confidence.”

“The net result: I still have the old way I used to think, and I have Peter’s[Lynch] way of looking at the same problem or situation.”

“Politics have always covered two distinct kinds of problems: problems of administrative routine, and those that may be called 'questions of the moment.'… A question of the moment is, indeed, a substitute for some notion, such as the idea of God, or hereditary monarchy, or national glory, that has hitherto acted as a symbol of human co-ordination. It provides no new positive certainty to replace the discredited certainty, but is what the name implies: the raising of a question which the old certainty no longer answers.”

“The re-interpretation and eventually eradication of the concept of right and wrong which has been the basis of child training, the substitution of intelligent and rational thinking for faith in the certainties of the old people, these are the belated objectives of practically all effective psychotherapy.”

“The worst thing about death is not uncertainty. The worst thing about death is the certainty that humans will be separated from the light of the true truth as a result of their own arrogance and ignorance.”

“When a photon comes down, it interacts with electrons throughout the glass, not just on the surface. The photon and electrons do some kind of dance, the net result of which is the same as if the photon hit only on the surface.”