Summary: An Apple design secret - the connection between attitude and productivity.
Unfortunately you need a subscription to read the content over at technologyreview.com, but they had a nice article a while ago on "The Secret of Apple Design." I really like a quote they had about a person's attitude, and the relationship of that attitude and the impact on their work:
There’s just one person behind this website; if this article was helpful (or interesting), I’d appreciate it if you’d share it. Thanks, Al.