One geometry cannot be more true than another; it can only be more convenient. Geometry is not true, it is advantageous.

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.

Care and Quality are internal and external aspects of the same thing. A person who sees Quality and feels it as he works is a person who cares. A person who cares about what he sees and does is a person who’s bound to have some characteristic of quality.

The funny thing about insane people is that it is kind of the opposite of being a celebrity. Nobody envies you.

The past cannot remember the past. The future can't generate the future. The cutting edge of the instant right here and now is always nothing less than the totality of everything there is.

It's so hard when contemplated in advance, and so easy when you do it.

Good is a noun rather than an adjective.