“If I hold my head to the left and look down at the handle grips and front wheel and map carrier and gas tank I get one pattern of sense data. If I move my head to the right I get another slightly different pattern of sense data. The two views are different. The angles of the planes and curves of the metal are different. The sunlight strikes them differently. If there's no logical basis for substance then there's no logical basis for concluding that what's produced these two views is the same motorcycle.”

“Logic presumes a separation of subject from object; therefore logic is not final wisdom.This is Zen. This is my motorcycle maintenance. ”

“But to tear down a factory or to revolt against a government or to avoid repair of a motorcycle because it is a system is to attack effects rather than causes; and as long as the attack is upon effects only, no change is possible. The true system, the real system, is our present construction of systematic thought itself, rationality itself, and if a factory is torn down but the rationality which produced it is left standing, then that rationality will simply produce another factory. If a revolution destroys a systematic government, but the systematic patterns of thought that produced that government are left intact, then those patterns will repeat themselves in the succeeding government. There’s so much talk about the system. And so little understanding.”

“You look at where you're going and where you are and it never makes sense, but then you look back at where you've been and a pattern seems to emerge.”

“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.”

“On an air-cooled engine like this, extreme overheating can cause a “seizure”. This machine has had one...in fact, three of them. I took this machine into a shop because I thought it wasn’t important enough to justify getting into myself, having to learn all the complicated details. The shop was a different scene from the ones I remembered. The mechanics, who had once all seemed like ancient veterans, now looked like children. A radio was going full blast and they were clowning around and talking and seemed not to notice me. They sat down to do a job and they performed it like chimpanzees. Nothing personal in it.The radio was a clue. You can’t really think hard about what you’re doing and listen to the radio at the same time. But the biggest clue seemed to be their expressions. They were hard to explain. Good-natured, friendly, easygoing—and uninvolved. They were like spectators. I found the cause of the seizures a few weeks later, waiting to happen again. It was a little twenty-five-cent pin in the internal oil-delivery system that had been sheared and was preventing oil from reaching the head at high speeds.On this trip I think we should notice it, explore it a little, to see if in that strange separation of what man is from what man does we may have some clues as to what the hell has gone wrong in this twentieth century. I don’t want to hurry it. That itself is a poisonous twentieth-century attitude. When you want to hurry something, that means you no longer care about it and want to get on to other things. I just want to get at it slowly, but carefully and thoroughly, with the same attitude I remember was present just before I found that sheared pin. It was that attitude that found it, nothing else.”

“The doctrinal differences between Hinduism and Buddhism and Taoism are not anywhere near as important as doctrinal differences among Christianity and Islam and Judaism. Holy wars are not fought over them because verbalized statements about reality are never presumed to be reality itself.”