"No one thinks about why they do things very deeply."
Steve Jobs said that, and many more wonderful things, as blogged by LukeW as he watched the lost Steve Jobs interview.
My favorite:
"Many companies get the disease of thinking that a really great idea is 90 percent of the work. And if you just tell all these other people here’s this great idea then of course they can go off and make it happen. And the problem with that is that there’s just a tremendous amount of craftsmanship in between a great idea and a great product. Designing a product is keeping five thousand things in your brain and fitting them all together in new and different ways to get what you want. And every day you discover something new that is a new problem or a new opportunity to fit these things together a little differently."
And also: "How do you know the direction to head with products? It boils down to taste. Emerge yourself with the best ideas from the humanities. And integrate them. Pull interests from diverse areas."
One more: "With really good people all that matters is the work. They all know that."
The work is all that matters. :)