A well-designed and humane interface does not have to be split into beginner and expert subsystems.

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.

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

When you have to choose among methods, your locus of attention is drawn from the task and temporarily becomes the decision itself.

If I am correct, the use of a product based on modelessness and monoty would soon become so habitual as to be nearly addictive, leading to a user population devoted to and loyal to the product.

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