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

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 didn't want murder. It's all gone wrong.

I'm a slave to my imagination in terms of making narrative films.

From the very beginning, all of my films have divided the critics. Some have thought them wonderful, and others have found very little good to say. But subsequent critical opinion has always resulted in a very remarkable shift to the favorable. In one instance, the same critic who originally rapped the film has several years later put it on an all-time best list. But of course, the lasting and ultimately most important reputation of a film is not based on reviews, but on what, if anything, people say about it over the years, and on how much affection for it they have.

I'm not saying we wouldn't get our hair mussed, Mr. President, but I do say not more than ten to twenty million dead depending upon the breaks.

New York was the only really hostile city. Perhaps there is a certain element of the lumpen literati that is so dogmatically atheist and materialist and Earth-bound that it finds the grandeur of space and the myriad mysteries of cosmic intelligence anathema.