Users do not care about what is inside the box, as long as the box does what they need done.

Right now, computers, which are supposed to be our servant, are oppressing us.

A computer shall not harm your work or, through inaction, allow your work to come to harm.

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.

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

The system should treat all user input as sacred.