1997年:贝索斯致股东信《吸引符合你价值观的股东》
中心地的等级反映了所提供的商品和服务的等级。
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.
The beauty of a mathematical proof lies in its simplicity and inevitability.