Here to paradise they go, brighter made is their woe, as above, so below.
Mr Bungle. The dinosaurs became extinct because they didn't have a space program.
Larry Niven. I wonder how many dead one-planet civilizations are out there in the cosmos that never made it to the other planet and ultimately extinguished themselves or were destroyed by external factors. Probably a few.
Elon Musk. When I first looked back at the Earth, standing on the Moon, I cried.
Alan Shepard. I looked and looked but I didn’t see God.
Yuri Gagarin. The more I examine the Universe and the details of its architecture, the more evidence I find that the Universe in some sense must have known we were coming.
Freeman Dyson.