The only way to define your limits is by going beyond them.

Only small minds are impressed by large numbers.

At the present rate of progress, it is almost impossible to imagine any technical feat that cannot be achieved - if it can be achieved at all - within the next few hundred years.

Guns are the crutches of the impotent.

No communication technology has ever disappeared, but instead becomes increasingly less important as the technological horizon widens.

And because, in all the Galaxy, they had found nothing more precious than Mind, they encouraged its dawning everywhere. They became farmers in the fields of stars; they sowed, and sometimes they reaped. And sometimes, dispassionately, they had to weed.

Few artists thrive in solitude and nothing is more stimulating than the conflict of minds with similar interests.