Anyone who has wrestled knows that it's the hardest thing in the world to do. Anyone who says something else is the hardest thing has never wrestled. That's what I have found. ... You don't wrestle because it's easy, you wrestle because it's hard. I don't do astrophysics because it's easy, I do it because it's hard. And I juxtapose the two in my mind, body, and soul all the time.
Neil deGrasse TysonMany people feel small because they're small and the universe is big, but I feel big.
Neil deGrasse TysonNothing is a thing: it's nothing. So I can imagine a place where there's not even nothing.
Neil deGrasse TysonOnly when creative people take ownership of cosmic discovery will society accept science as the cultural activity that it is.
Neil deGrasse TysonAmericans live in a free country, which allows you to believe what you want. Because you think that something is true does not require that it is objectively true. The value of science concerning itself with objective truths is that we can make decisions and statements that affect everyone, which is why legislation really should be based on objective truths, not what is going on in your head.
Neil deGrasse Tyson