All too often, schools resemble museums, reflecting the past rather than shaping the future

So with each advance in understanding come new questions. So we need to be very humble. We shouldn’t have hubris and think that we can understand everything. But history tells us that there is good reason to believe that we will continue making fantastic progress in the years ahead.

For me, [John Wheeler] was the last Titan, the only physics superhero still standing.

All too often, schools resemble museums, reflecting the past rather than shaping the future

The hallmark of a deep explanation is that it answers more than you ask

If I get a parking ticket, there is always a parallel universe where I didn't. On the other hand, there is yet another universe where my car was stolen.

In 2056, I think you'll be able to buy T-shirts on which are printed equations describing the unified laws of our universe.