It is important to realize that in physics today, we have no knowledge of what energy is

Doubt is clearly a value in science. It is important to doubt and that the doubt is not a fearful thing, but a thing of great value.

Start out understanding religion by saying everything is possibly wrong... As soon as you do that, you start sliding down an edge which is hard to recover from.

[B]eyond poverty, beyond the point that the material needs are reasonably satisfied, only from within is peace.

The present situation in physics is as if we know chess, but we don't know one or two rules.

For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.

Have no respect whatsoever for authority; forget who said it and instead look what he starts with, where he ends up, and ask yourself, "Is it reasonable?"