These philosophically fun ideas usually satisfy nobody. Nonetheless, they remind us that ignorance is the natural state of mind for a research scientist. People who believe they are ignorant of nothing have neither looked for, nor stumbled upon, the boundary between what is known and unknown in the universe.

People who are scientists today are scientists in spite of the system, typically, not because of it.

There's something about witnessing something in the sky that makes people think they're seeing something unique or special. I don't really understand the psychology of it, to be honest.

For me, the most fascinating interface is Twitter. I have odd cosmic thoughts every day and I realized I could hold them to myself or share them with people who might be interested.

I think the greatest of people that have ever been in society, they were never versions of someone else. They were themselves.

Not enough people in this world, I think, carry a cosmic perspective with them. It could be life-changing.

People like death and mayhem.

There's no shortage of people that we can put on, because science touches us all.

All the nine-planet people out there: Get over it. There's eight.