Science is very good at answering the 'how' questions. 'How did the universe evolve to the form that we see?' But it is woefully inadequate in addressing the 'why' questions. 'Why is there a universe at all?' These are the meaning questions, which many people think religion is particularly good at dealing with.

I'd say many features of string theory don't mesh with what we observe in everyday life.

Our eyes only see the big dimensions, but beyond those there are others that escape detection because they are so small.

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

The real question is whether all your pondering and analyses will convince you that life is worth living. That's what it all comes down to.

Far from being accidental details, the properties of nature's basic building blocks are deeply entwined with the fabric of space and time.