A computer shall not waste your time or require you to do more work than is strictly necessary. - Jef Raskin

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.

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

Now there is little difference, except packaging, between a Mac and a Windows machine. Not no difference, but at home we have — along with six Macs (one for everybody plus my travelling iBook) — three PCs and one Linux box, and I can move from one to the other without having to think about it much. What used to be a night-and-day difference in usability has become a small increment in Apple's favor (or favour for you Brits).