Maybe dark matter is denser than we usually assume, kind of like the Milky Way plane.

Although I was first drawn to math and science by the certainty they promised, today I find the unanswered questions and the unexpected connections at least as attractive.

I'm not creating the universe. I'm creating a model of the universe, which may or may not be true.

I had this illusion that if I kind of dressed badly that I wouldn't stand out. You know, so I actually went out of my way to not look different to the extent I could.

I think it's a problem that people are considered immoral if they're not religious. That's just not true. If you do something for a religious reason, you do it because you'll be rewarded in an afterlife or in this world. That's not quite as good as something you do for purely generous reasons.

Scientific research involves going beyond the well-trodden and well-tested ideas and theories that form the core of scientific knowledge. During the time scientists are working things out, some results will be right, and others will be wrong. Over time, the right results will emerge.

Probably if you look like Tyra Banks, it probably is hard, even if you are really smart, for people to take - it surprises some.