The Earth is just too small and fragile a basket for the human race to keep all its eggs in. — Robert A. Heinlein Copy Share Image
Once you get to earth orbit, you're halfway to anywhere in the solar system. — Robert A. Heinlein Copy Share Image
The second best thing about space travel is that the distances involved make war very difficult, usually impractical, and almost always unnecessary.… — Robert A. Heinlein Copy Share Image
But space travel can't ease the pressure on a planet grown too crowded not even with today's ships and probably not with… — Robert A. Heinlein Copy Share Image
The best thing about space travel is that it made it possible to go elsewhere. — Robert A. Heinlein Copy Share Image
Remember this: once the human race is established on more than one planet and especially, in more than one solar system, there… — Robert A. Heinlein Copy Share Image
Spacemen - men who work in space, pilots and jetmen and astrogators and such - are men who like a few million… — Robert A. Heinlein Copy Share Image
When a place gets crowded enough to require ID's, social collapse is not far away. It is time to go elsewhere. The… — Robert A. Heinlein Copy Share Image
It may take endless wars and unbearable population pressure to force-feed a technology to the point where it can cope with space.… — Robert A. Heinlein Copy Share Image
Social responsibility above the level of family, or at most of tribe, requires imagination-- devotion, loyalty, all the higher virtues -- which a man… — Robert A. Heinlein Copy Share Image
My folks tried to make a preacher of me and missed by a narrow margin… I would have made a good one if I… — Robert A. Heinlein Copy Share Image
Ninety percent of all human wisdom is the ability to mind your own business. — Robert A. Heinlein Copy Share Image
If we blow ourselves up we will do it by misapplication of science; if we manage to keep from blowing ourselves up, it will… — Robert A. Heinlein Copy Share Image
Nor would anybody suspect. If was one thing all people took for granted, was conviction that if you feed honest figures into a computer,… — Robert A. Heinlein Copy Share Image
Women will forgive anything. Otherwise, the race would have died out long ago. — Robert A. Heinlein Copy Share Image
Most neuroses and some psychoses can be traced to the unnecessary and unhealthy habit of daily wallowing in the troubles and sins of five… — Robert A. Heinlein Copy Share Image
No statement should be believed because it is made by an authority. — Robert A. Heinlein Copy Share Image
“Some people are ants by nature; they have to work, even when it’s useless. Few people have a talent for constructive laziness.” — Robert A. Heinlein Copy Share Image
“The instinct to survive is human nature itself, and every aspect of our personalities derives from it. Anything that conflicts with the survival instinct… — Robert A. Heinlein Copy Share Image
“I tried to dig out of the computer a call directory for Luna. But it was still sulking. I could not get it to… — Robert A. Heinlein Copy Share Image
