Physicists are more like avant-garde composers, willing to bend traditional rules... Mathematicians are more like classical composers.

No matter how hard you try to teach your cat general relativity, you're going to fail.

Science proceeds along a zig-zag path toward what we hope will be ultimate truth, a path that began with humanity's earliest attempts to fathom the cosmos and whose end we cannot predict.

We might be the holographic image of a two-dimensional structure.

We can certainly go further than cats, but why should it be that our brains are somehow so suited to the universe that our brains will be able to understand the deepest workings?

The boldness of asking deep questions may require unforeseen flexibility if we are to accept the answers.

If the theory turns out to be right, that will be tremendously thick and tasty icing on the cake.

Sometimes attaining the deepest familiarity with a question is our best substitute for actually having the answer.

I've spent something like 17 years working on a theory for which there is essentially no direct experimental support.