In matters of style, swim with the current; in matters of principle, stand like a rock.
If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.
2002年：贝索斯致股东信《同时提供领先世界的用户体验，和价格最低的产品》
