One does not have to appeal to God to set the initial conditions for the creation of the universe, but if one does He would have to act through the laws of physics.

Quiet people have the loudest minds.

There could be whole antiworlds and antipeople made out of antiparticles. However, if you ever meet your antiself, don't shake hands! You would both vanish in a great flash of light.

We are very, very small, but we are profoundly capable of very, very big things.

The universe does not behave according to our pre-conceived ideas. It continues to surprise us.

We are in danger of destroying ourselves by our greed and stupidity. We cannot remain looking inwards at ourselves on a small and increasingly polluted and overcrowded planet.

No one undertakes research in physics with the intention of winning a prize. It is the joy of discovering something no one knew before.