The amazing thing is that every atom in your body came from a star that exploded.

Nothing can create something all the time due to the laws of quantum mechanics, and it's - it's fascinatingly interesting.

Science is not just there for technology. It's part of what addressing who you are in the universe and understanding your place in the cosmos. Good art, good literature, good music - all of that is for that and science is a part of it.

Lack of comfort means we are on the threshold of new insights.

The root cause of the looming energy problem - and the key to easing environmental, economic and religious tensions while improving public health - is to address the unending, and unequal, growth of the human population. And the one proven way to reduce fertility rates is to empower young women by educating them.

The ultimate arbiter of truth is experiment, not the comfort one derives from one's a priori beliefs, nor the beauty or elegance one ascribes to one's theoretical models.

I can't prove that God doesn't exist, but I'd much rather live in a universe without one.