If we have learned one thing from the history of invention and discovery, it is that, in the long run-and often in the short one-the most daring prophecies seem laughably conservative.

It is vital to remember that information - in the sense of raw data - is not knowledge, that knowledge is not wisdom, and that wisdom is not foresight. But information is the first essential step to all of these.

If there are any gods whose chief concern is man, they can't be very important gods.

Overhead, without any fuss, the stars were going out.

There were some things that only time could cure. Evil men could be destroyed, but nothing could be done with good men who were deluded.

Almost any seat was comfortable at one-sixth of a gravity.

We seldom stop to think that we are still creatures of the sea, able to leave it only because, from birth to death, we wear the water-filled space suits of our skins.