A film needs more than you can give it in a lifetime.

The feel of the experience is the important thing, not the ability to verbalize or analyze it.

Have you ever had a single moment's thought about my responsibilities?

Take a stress pill and think things over-- HAL in 2001

How could we possibly appreciate the Mona Lisa if Leonardo had written at the bottom of the canvas: 'The lady is smiling because she is hiding a secret from her lover.' This would shackle the viewer to reality, and I don't want this to happen to 2001.

I’ve never been certain whether the moral of the Icarus story should only be, as is generally accepted, ‘don’t try to fly too high,’ or whether it might also be thought of as ‘forget the wax and feathers, and do a better job on the wings.

You either connect or you don't connect. It's not the end of the world. It's a movie.