Isaac Asimov

The laws of robotics are not made to be broken.

Never let your sense of morals prevent you from doing what is right.

The future is already here – it's just not very evenly distributed.

The greatest emotion of all is the emotion of love.

It is the uncertainty of life that makes it worth living.

Science fiction writers foresee the inevitable, and although problems and catastrophes may be inevitable, solutions are not.

Violence is the last refuge of the incompetent.

The mind of man is capable of anything.

To be a robot is to be a servant.

A subtle thought that is in error may yet give rise to fruitful inquiry that can establish truths of great value.