Jef Raskin - Manual v37

EPIGRAPH
It's extremely important to always bear in mind that we are all creatures of habit, down to the most minute detail, so we tend to confuse what is "natural" with what is "comfortable." Things that are comfortable are so almost entirely because we are used to them. When things become habitual through repeated application, they start to feel natural because we can't imagine them any other way; but we have to take a few steps back and objectively reassess what we do in order to find out whether our comfortable habits are actually natural and efficient