I think the relationship between memory and time is a very deep and tricky one, to tell you the truth. I don't consider memory another sense. I do consider memory that which allows us to think that time flows.

I can't stand clutter. I can't stand piles of stuff. And whenever I see it, I basically just throw the stuff away.

Sometimes nature guards her secrets with the unbreakable grip of physical law. Sometimes the true nature of reality beckons from just beyond the horizon.

We're on this planet for the briefest of moments in cosmic terms, and I want to spend that time thinking about what I consider the deepest questions.

I believe the process of going from confusion to understanding is a precious, even emotional, experience that can be the foundation of self-confidence.

The universe is incredibly wondrous, incredibly beautiful, and it fills me with a sense that there is some underlying explanation that we have yet to fully understand. If someone wants to place the word 'God' on those collections of words, it's OK with me.

I may be a Jewish scientist, but I would be tickled silly if one day I were reincarnated as a Baptist preacher.