"We have to challenge our beliefs every single day. That's what science is all about. There are no scientific ideologies. The reason science has progressed and theology hasn't, the reason we have video cameras and lights and medicine and we can feed more people and live longer healthier lives, is because science changes. The great thing about science is that there are no unshakable truths. We force the way we view reality to depend upon the evidence of reality. So if you don't challenge your beliefs, you're never learning. You're never questioning yourself."
"In science, every day we challenge our beliefs. That's how science works. Most people think science works the other way around. But, in fact, what you wanna do when you come into work everyday, if you're a scientist, is you want to prove all of your colleagues are wrong. Because that's the way you get famous."