The system should treat all user input as sacred.

I hate mice. The mouse involves you in arm motions that slow you down. I didn't want it on the Macintosh, but Jobs insisted. In those days, what he said went, good idea or not.

An unlimited-length file name is a file. The content of a file is its own best name.

If I had not studied music, there would be no Macintosh computers today.

An interface is humane if it is responsive to human needs and considerate of human frailties.

If our field is "to advance", we must - without displacing creativity and aesthetics - make sure our terminology is clear.

Once the product's task is known, design the interface first; then implement to the interface design.