Users Do Not Care About

As Far As The Customer Is Concerned, The Interface Is The Product.

A Computer Shall Not Waste Your Time Or Require You To Do More Work Than Is Strictly Necessary.

Once The Product's Task Is Known, Design The Interface First; Then Implement To The Interface Design.

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.

The System Should Treat All User Input As Sacred.