Odd how often blood is shed to obtain freedom from those in power. Oppressors must be the most insecure people in the world.

I'm not as famous as Stephen Hawking, but certainly in the U.S., I have a very high profile for a scientist. It is an awesome responsibility, one that I don't shoulder lightly.

I have a personal philosophy in life: If somebody else can do something that I'm doing, they should do it. And what I want to do is find things that would represent a unique contribution to the world-the contribution that only I, and my portfolio of talents, can make happen. Those are my priorities in life.

85 percent of the gravity of the universe has a point of origin about which we know nothing.

I dream of a world where the truth is what shapes people's politics, rather than politics shaping what people think is true.

Essentially every scientist, when posed with the question, "If you want to get science knowledge from Mars, do you want to send a geologist or do you want to send a robot?" Well, the real answer is, you can send 100 robots for the price of sending one geologist, so let's send 100 robots to 100 different locations, and then we would all benefit. So that's the answer you would get. And I agree with that answer.

If there's something that someone else can do, let them do it. If I couldn't do it uniquely, let someone else do it and I would get back to the lab.