I thought, I'm only going to be on this planet once, and only for a short time. What can I do with my life that will lead to permanent benefits?

The idea that an individual can find God is terribly self-centered. It is like a wave thinking it can find the sea.

Three of my children are medical doctors, they know at least a hundred times as much about your body as my grandfather knew, but they don't know much more about soul than he did.

The correct description is that we try every day to become more humble when we talk about divinity, we try to realize how little we know and how open minded we should be.

I'm really convinced that our descendants a century or two from now will look back at us with the same pity that we have toward the people in the field of science two centuries ago.