"The past, like the future, is indefinite and exists only as a spectrum of possibilities."

"I would like to think that the universe is a friendly place. But it's not."

"We are all stardust, and we are all connected to the universe."

"The universe is a great place to be, and I'm glad to be a part of it. But it's also a very dangerous place, and we need to be careful."

"Cosmology is the study of the large scale structure of the universe, and how it has evolved over time."