Why on earth do you carry a mirror around with you?” “It's purely a defensive device. We seldom quarrel, and this is one of the reasons. Can you imagine yourself getting all worked up and contorted and illogical and then coming face to face with yourself, looking at yourself exactly as you look to everyone else?

My wife is beginning to instruct me on means to retrieve dreams, and bit by bit, it does seem to be working.

Science fiction, outside of poetry, is the only literary field which has no limits, no parameters whatsoever. You can go not only into the future, but into that wonderful place called other, which is simply another universe, another planet, another species.

Ninety percent of everything is crap.

Even if this is the end of humankind, we dare not take away the chances some other life-form might have to succeed where we failed. If we retaliate, there will not be a dog, a deer, an ape, a bird or fish or lizard to carry the evolutionary torch. In the name of justice, if we must condemn and destroy ourselves, let us not condemn all life along with us! We are heavy enough with sins. If we must destroy, let us stop with destroying ourselves!

The best science fiction is as good as the best fiction in any field.

If All Men Were Brothers, Would You Let One Marry Your Sister?