The cure for advanced gullibility is to go to sleep and consider matters again the next day..

People think of education as something that they can finish..

It is the writer who might catch the imagination of young people, and plant a seed that will flower and come to fruition..

Even as a youngster, though, I could not bring myself to believe that if knowledge presented danger, the solution was ignorance. To me, it always see….

Violence is the last refuge of the incompetent..

The greatest weapons in the conquest of knowledge are an understanding mind and the inexorable curiosity that drives it on..

The law of conservation of energy tells us we can't get something for nothing, but we refuse to believe it..

The Three Theorems of Psychohistorical Quantitivity: The population under scrutiny is oblivious to the existence of the science of Psychohistory. The….

All the suffering that humanity ever knew can be traced to the one fact that no man in the history of the Galaxy ... could really understand one anot….

There are no nations! There is only humanity. And if we don't come to understand that right soon, there will be no nations, because there will be no ….

I don’t like anything that’s got to be. I want to know why..

How many people is the earth able to sustain?.

They absorb carbon monoxide and carbon dioxide and give out oxygen. What could be more desirable? And they look good in the bargain. Stop chopping do….

Whenever I have endured or accomplished some difficult task -- such as watching television, going out socially or sleeping -- I always look forward t….

In a properly automated and educated world, then, machines may prove to be the true humanizing influence. It may be that machines will do the work th….

Experimentation is the least arrogant method of gaining knowledge. The experimenter humbly asks a question of nature..

The dangers that face the world can, every one of them, be traced back to science. The salvations that may save the world will, every one of them, be….

I type 90 words per minute on the typewriter; I type 100 words per minute on the word processor. But, of course, I don't keep that up indefinitely - ….

To test a perfect theory with imperfect instruments did not impress the Greek philosophers as a valid way to gain knowledge..

Until I became a published writer, I remained completely ignorant of books on how to write and courses on the subject ... they would have spoiled my ….