Just one living cell in the human body is, more complex than New York City.

If you want to have good ideas you must have many ideas. Most of them will be wrong, and what you have to learn is which ones to throw away.

The way to get good ideas is to get lots of ideas and throw the bad ones away.

You have to have a lot of ideas. First, if you want to make discoveries, it's a good thing to have good ideas. And second, you have to have a sort of sixth sense-the result of judgment and experience-which ideas are worth following up. I seem to have the first thing, a lot of ideas, and I also seem to have good judgment as to which are the bad ideas that I should just ignore, and the good ones, that I'd better follow up.

Science is the search for truth, that is the effort to understand the world: it involves the rejection of bias, of dogma, of revelation, but not the rejection of morality.

The only sane policy for the world is that of abolishing war.

Do not let either the medical authorities or the politicians mislead you. Find out what the facts are, and make your own decisions about how to live a happy life and how to work for a better world.