I like to regard myself as someone who's capable of critical thought, that is to say, who can evaluate claims.

The 15th was always just a target. We always knew we would evaluate that as we got closer.

He went to the hospital but there was nobody there to evaluate him. We'll try again tomorrow.

I'm someone who does not like a bunker mentality and does not like groupthink.

You stop planetary exploration, those people who do that extraordinary work are going to have to go do something else.

Science is the best idea humans have ever had. The more people who embrace that idea, the better.