"If every day were Earth Day we wouldn’t be in the mess we’re in."

- Neil deGrasse Tyson

"If every day were #EarthDay we wouldn’t be in the mess we’re in."

- Neil deGrasse Tyson

"If your ego starts out, 'I am important, I am big, I am special,' you're in for some disappointments when you look around at what we've discovered about the universe. No, you're not big. No, you're not. You're small in time and in space. And you have this frail vessel called the human body that's limited on Earth."

- Neil deGrasse Tyson

"If the only time you think of me as a scientist is during Black History Month, then I must not be doing my job as a scientist."

- Neil deGrasse Tyson

"Half of my library are old books because I like seeing how people thought about their world at their time. So that I don't get bigheaded about something we just discovered and I can be humble about where we might go next. Because you can see who got stuff right and most of the people who got stuff wrong."

- Neil deGrasse Tyson