Sebastiaan de With’s interview on Design.org:
Ward Andrews: You used to work at Apple, what was that like? What did you learn there that you have taken and applied now with DoubleTwist?
Sebastian: I learned countless things at Apple, but the most important skill I acquired was the ability to simply take a set of extremely polished designs—sometimes designs I’d easily consider to be the best I’d made in my life—and throw them away, trash them entirely, and start over. It’s where truly great design is born. Since my time at Apple I’ve done this many, many times, and it has always resulted in incredible progress. You have to learn to kill your babies, mercilessly. They’re just pixels. You can do better.
This is the truth about design. It is an evolving process. In the hands of the artist, nothing ever ends. All “finished work” are but milestones in the process to becoming a better creator.