The goal of the future is full unemployment, so we can play. That's why we have to destroy the present politico-economic system.

Belief in God is apparently a psychological artifact of mammalian reproduction.

I have never grown up, but I will never stop growing.

Science fiction seldom attempts to predict the future. More often than not, it tries to prevent the future.

The piece of equipment I'm most found off is my telescope. The other night I had a superb view of the moon.

The exploration of the planets is now closer to us in time than the exploration of Africa by Stanley and Livingstone.

No utopia can ever give satisfaction to everyone, all the time. As their material conditions improve, men raise their sights and become discontented with power and possessions that once would have seemed beyond their wildest dreams. And even when the external world has granted all it can, there still remain the searchings of the mind and the longings of the heart.