Metaphysics is a restaurant where they give you a thirty thousand page menu, and no food.

If someone's ungrateful and you tell him he's ungrateful, okay, you've called him a name. You haven't solved anything.

One thing about pioneers that you don't hear mentioned is that they are invariably, by their nature, mess-makers. They go forging ahead, seeing only their noble, distant goal, and never notice any of the crud and debris they leave behind them.

If there were only one person in the world, is there any way he could be insane?

Is it hard?' Not if you have the right attitudes. Its having the right attitudes thats hard.

Mental patterns do not originate out of inorganic nature. They originate out of society, which originates out of inorganic nature. And, as anthropologists know so well, what a mind thinks is as dominated by biological patterns as social patterns are dominated by biological patterns and as biological patterns are dominated by inorganic patterns. There is no direct scientific connection between mind and matter. As the atomic scientist, Niels Bohr, said, "We are suspended in language." Our intellectual description of nature is always culturally derived.

How are you going to teach virtue if you teach the relativity of all ethical ideas? Virtue, if it implies anything at all, implies an ethical absolute. A person whose idea of what is proper varies from day to day can be admired for his broadmindedness, but not for his virtue.