Some things that satisfy the rules of algebra can be interesting to mathematicians even though they don't always represent a real situation.

Some people think Wheeler's gotten crazy in his later years, but he's always been crazy.

But the real glory of science is that we can find a way of thinking such that the law is evident.

I'm going to play with physics, whenever I want to, without worrying about any importance whatsoever.

The exception tests the rule.

Nature does not care what we call it, she just keeps on doing it.

In physics the truth is rarely perfectly clear, and that is certainly universally the case in human affairs. Hence, what is not surrounded by uncertainty cannot be the truth.