Down there between our legs, it's like an entertainment complex in the middle of a sewage system. Who designed that?

I [do not know] when the end of science will come. ... What I do know is that our species is dumber than we normally admit to ourselves. This limit of our mental faculties, and not necessarily of science itself, ensures to me that we have only just begun to figure out the universe.

I'd rather enjoy the money, and then be buried, offering my body back to the flora and fauna of which I have dined my whole life.

The more I learn about the universe, the less convinced I am that there's any sort of benevolent force that has anything to do with it, at all.

We should not measure our space-faring era by where footprints have been laid.... We should measure our era by how many people take no notice at all. A legacy rises to become culture only when its elements are so common that they no longer attract comment.

No matter what eyewitness testimony is in the court of law, it is the lowest form of evidence in the court of science.

When students cheat on exams, it's because our school system values grades more than students value learning.