Progress isn't made by early risers. It's made by lazy men trying to find easier ways to do something.
Robert A. HeinleinOnce there was a race, quite unlike the human race - quite. I have no way of describing to you what they looked like or how they lived, but they had one characteristic you can understand: they were creative. The creating and enjoying of works of art was their occupation and their reason for being.
Robert A. HeinleinBut space travel can't ease the pressure on a planet grown too crowded not even with today's ships and probably not with any future ships-because stupid people won't leave the slopes of their home volcano even when it starts to smoke and rumble. What space travel does do is drain off the best brains: those smart enough to see a catastrophe before it happens, and with the guts to pay the price-abandon home, wealth, friends, relatives, everything-and go. That's a tiny fraction of one percent. But that's enough.
Robert A. Heinlein