Every time man makes a new experiment he always learns more. He cannot learn less.

Nature is trying very hard to make us succeed, but nature does not depend on us. We are not the only experiment.

I'm not trying to copy Nature, I'm trying to find the principles she's using.

The most important thing to teach your children is that the sun does not rise and set. It is the Earth that revolves around the sun. Then teach them the concepts of North, South, East and West, and that they relate to where they happen to be on the planet's surface at that time. Everything else will follow.

Everything you've learned in school as "obvious" becomes less and less obvious as you begin to study the universe.

Think of it. We are blessed with technology that would be indescribable to our forefathers. We have the wherewithal, the know-it-all to feed everybody, clothe everybody, and give every human on Earth a chance. We know now what we could never have known before - that we now have the option for all humanity to make it successfully on this planet in this lifetime. Whether it is to be Utopia or Oblivion will be a touch-and-go relay race right up to the final moment.

We are prisoners of our own metaphors, metaphorically speaking.