And I repeat: if there is anything that can divert the land of my birth from its current stampede into the Stone Age, it is the widespread dissemination of the thoughts and perceptions that Robert Heinlein has been selling as entertainment since 1939.

The problems of today's youth were no longer a Sunday supplement, or a news broadcast, or anything so remote and intangible. They were suddenly become a dirty, shivering boy, who told us that in this world we had built for him with our sweat and our blood, he was not only tired of living, but so unscared of dying that he did it daily, sometimes for recreation.

Mankind is divided into two basic sorts: those who find the unknown future threatening ... and those who find it thrilling. The rupture between those two sides has been responsible for most of the bloodshed in history.

To all the Callahan's Places there ever were or ever will be, whatever they may be called — and to all the merry maniacs and happy fools who are fortunate enough to stumble into one: may none of them arrive too late!

Some guys step on a rake in the dark, and get mad and go punch somebody. Others step on a rake in the dark and fall down laughing at themselves. I know which kind of guy I'd rather be. So do my friends.

Pain shared is pain lessened; joy shared is joy increased. Thus do we refute entropy.

The delusion that one's sexual pattern is The Only Right Way To Be is probably the single most common sexual-psychosis syndrome of this era, and it is virtually almost always the victim's fault. You cannot acquire this delusion by observing reality.