The best way to make your dreams come true is to wake up.

The mind has transformed the world, and the world is repaying it with interest. It has led man where he had no idea how to go.

Power without abuse loses its charm.

You have certainly observed the curious fact that a given word which is perfectly clear when you hear it or use it in everyday language, and which does not give rise to any difficulty when it is engaged in the rapid movement of an ordinary sentence becomes magically embarrassing, introduces a strange resistance, frustrates any effort at definition as soon as you take it out of circulation to examine it separately and look for its meaning after taking away its instantaneous function.

Cognition reigns but does not rule.

One should be light like a bird, and not like a feather.

Though completely armed with knowledge and endowed with power, we are blind and impotent in a world we have equipped and organized-a world of which we now fear the inextricable complexity.