As Far As The Customer Is Concerned,

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

Imagine If Every Thursday Your Shoes Exploded If You Tied Them The Usual Way. This Happens To Us All The Time With Computers, And Nobody Thinks Of Complaining.

What I Proposed Was A Computer That Would Be Easy To Use, Mix Text And Graphics, And Sell For About $1,000. Steve Jobs Said That It Was A Crazy Idea, That It Would Never Sell, And We Didn't Want Anything Like It. He Tried To Shoot The Project Down.

A Computer Shall Not Harm Your Work Or, Through Inaction, Allow Your Work To Come To Harm.

Users Do Not Care About What Is Inside The Box, As Long As The Box Does What They Need Done.