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

What users want is convenience and results.

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

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.

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

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

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