Quantum field theory, which was born just fifty years ago from the marriage of quantum mechanics with relativity, is a beautiful but not very robust child.

Wisdom is the quality that keeps you from getting into situations where you need it.

The only nice thing about being imperfect is the joy it brings to others.

The real secret of patience is to find something to do in the meantime.

If people concentrated on the really important things in life, there'd be a shortage of fishing poles.

The idea that no one is perfect is a view most commonly held by people with no grandchildren.

There must be a happy medium somewhere between being totally informed and blissfully unaware.

Life expectancy would grow by leaps and bounds if green vegetables smelled as good as bacon.

It's your ability to inspire and uplift other people that matters, not your ability to outdo them.

Wisdom is the reward you get for a lifetime of listening when you'd have preferred to talk.

Science is corrosive of religious belief, and it's a good thing too.

For good people to do evil things, it takes religion.

I think one of the great historical contributions of science is to weaken the hold of religion. That's a good thing.

As for me, I have just enough confidence about the multiverse to bet the lives of both Andrei Linde and Martin Rees’s dog.

Journalists generally have no bias toward one cosmological theory or another, but many have a natural preference for excitement.

My advice is to go for the messes - that's where the action is.

On balance the moral influence of religion has been awful.

Maybe nature is fundamentally ugly, chaotic and complicated. But if it's like that, then I want out.

Our job in physics is to see things simply, to understand a great many complicated phenomena in a unified way, in terms of a few simple principles.