“Hundreds of thousands of years ago our ancestors of the dim and distant past faced the same problems which we must face, possibly in these same primeval forests. That we are here today evidences their victory.What they did may we not do? And even better, for are we not armed with ages of superior knowledge, and have we not the means of protection, defense, and sustenance which science has given us, but of which they were totally ignorant? What they accomplished, Alice, with instruments and weapons of stone and bone, surely that may we accomplish also.”

“We believe that it is possible for scientific work to gain some knowledge about the reality of the world, by means of which we can increase out power and in accordance with which we can arrange our life. If this belief is an illusion, then we are in the same position as you. But science has given us evidence by its numerous and important successes that it is no illusion.”

“Our ignorance can be divided into problems and mysteries. When we face a problem, we may not know its solution, but we have insight, increasing knowledge, and an inkling of what we are looking for. When we face a mystery, however, we can only stare in wonder and bewilderment, not knowing what an explanation would even look like.”

“Why are we here? We exist not to pursue happiness, which is fleeting, or outer accomplishment, which can always be bettered. We are here to nourish the self.”

“Counterfeits of the past, under new names, may easily be mistaken for the future. The past, that ghostly traveler, is liable to forge his papers. We must be wary of the trap. The past has a face which is superstition, and a mask, which is hypocrisy. We must expose the face and tear off the mask.”

“Technology causes problems as well as solves problems. Nobody has figured out a way to ensure that, as of tomorrow, technology won't create problems. Technology simply means increased power, which is why we have the global problems we face today."(Interview, Sierra Magazine, May/June 2005)”