“Your common sense is nothing more than the voices of thousands and thousands of these ghosts from the past.”

“The law of gravity and gravity itself did not exist before Isaac Newton." ...and what that means is that that law of gravity exists nowhere except in people's heads! It 's a ghost!"Mind has no matter or energy but they can't escape its predominance over everything they do. Logic exists in the mind. numbers exist only in the mind. I don't get upset when scientists say that ghosts exist in the mind. it's that only that gets me. science is only in your mind too, it's just that that doesn't make it bad. or ghosts either."Laws of nature are human inventions, like ghosts. Law of logic, of mathematics are also human inventions, like ghosts."...we see what we see because these ghosts show it to us, ghosts of Moses and Christ and the Buddha, and Plato, and Descartes, and Rousseau and Jefferson and Lincoln, on and on and on. Isaac Newton is a very good ghost. One of the best. Your common sense is nothing more than the voices of thousands and thousands of these ghosts from the past.”

“Historically mystics have claimed that for a true understanding of reality metaphysics is too “scientific”. Metaphysics is not reality. Metaphysics is names about reality. Metaphysics is a restaurant where they give you a thirty-thousand-page menu and no food.”

“I have seen these marshes a thousand times, yet each time they're new. It's wrong to call them benign. You could just as well call them cruel and senseless, they are all of those things, but the reality of them overwhelms halfway conceptions.”

“Who really can face the future? All you can do is project from the past, even when the past shows that such projections are often wrong. And who really can forget the past? What else is there to know?”

“What keeps the world from reverting to the Neanderthal with each generation is the continuing, ongoing mythos... the huge body of common knowledge that unites our minds as cells are united in the body of man...”

“It was the ghost of rationality itself ... This is the ghost of normal everyday assumptions which declares that the ultimate purpose of life, which is to keep alive, is impossible, but that this is the ultimate purpose of life anyway, so that great minds struggle to cure diseases so that people may live longer, but only madmen ask why. One lives longer in order that he may live longer. There is no other purpose. That is what the ghost says.”