The pinpoints of starlight we see with the naked eye are photons that have been streaming toward us for a few years or a few thousand.

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

It's hard to teach passionately about something that you don't have a passion for.

For me it's been very exciting to contribute to the public's understanding of how rich and wondrous science is.

Physicists have come to realize that mathematics, when used with sufficient care, is a proven pathway to truth.

One of the wonders of science is that it is completely universal. It crosses national boundaries with total ease.

I believe that through its rational evaluation of truth and indifference to personal belief, science transcends religious and political divisions and so does bind us into a greater, more resilient whole.