Stars die and reborn […] They get so hot that the nuclei of the atoms fuse together deep within them to make the oxygen we breathe, the carbon in our muscles, the calcium in our bones, the iron in our blood. All was cooked in the fiery hearts of long vanished stars. … The cosmos is also within us. We're made of star stuff. We are a way for the cosmos to know itself.

Ever since there have been people, there have been explorers, looking in places where other hadn't been before. Not everyone does it, but we are part of a species where some members of the species do, to the benefit of us all.

Here's what I'm wondering: if, digitally, you can remove red-eye, smooth over wrinkles, make people look thinner, then why don't we have the technology to make me sing better?

when I wrestled, I would set aside the time to wrestle, so that in my mind it didn't interfere with my study time. That helped me psychologically. When I'm wrestling, I'm not studying the universe. And when I'm studying the universe, I'm not wrestling.

Before we start talking about genetic differences, you gotta come up with a system where there's equal opportunity.

I'm often asked whether I believe in Global Warming. I now just reply with the question: "Do you believe in Gravity?"

Some memories are best absorbed through your eyes in real time, even if you have no record of it later. Because then you can access that memory and how you felt in that moment. If you're looking at your cellphone screen, taking a video of something that is otherwise unforgettable, watching it later will not recover the emotion you would have had, had you witnessed it directly.