"The more I learn about the universe, the less convinced I am that there’s some sort of benevolent intelligence behind it."

"For me, I am driven by two main philosophies: know more today about the world than I knew yesterday and lessen the suffering of others. You'd be surprised how far you can get with those two."

"The universe is not just stranger than we imagine, it is stranger than we can imagine."

"The most important thing is to never stop asking questions."

"For me, I am a cosmic optimist. I always think that we will find solutions to our problems."