It may be that we live in an endless universe, both in space and in time. And there've been Bangs in the past, and there will be Bangs in the future.

If the universe sprung into existence and then expanded exponentially, you get gravitational waves traveling through space-time. These would fill the universe, a pattern of echoes of the inflation itself.

Some day we'll move into space and start ensuring the survival of our species beyond Earth, whether it happens in a hundred years or a thousand.

Quantum physics is one of the hardest things to understand intuitively, because essentially the whole point is that our classical picture is wrong.

As a Christian, Israel has a very special place in my heart. There's no question about that. I grew up with a Bible, and the back of the Bible has all these pictures of Israel in it. And so all these locations are incredibly significant to me personally in my faith.

Most of us who become experimental physicists do so for two reasons; we love the tools of physics because to us they have intrinsic beauty, and we dream of finding new secrets of nature as important and as exciting as those uncovered by our scientific heroes.

Evangelicals have, for decades, believed that the country was more conservative than not, more Christian than not. The bipartisanship on religious liberty and the civic faith of the country was conducive to that. Now they've woken up to a reality in the Obama years that this was a polite fiction.

The biological task of science is to provide the fully developed human individual with as perfect a means of orientating himself as possible. No other scientific ideal can be realised, and any other must be meaningless.