Operational effectiveness and strategy are both essential to superior performance, but they work in very different ways.

书籍是很好的礼物，因为它们里面包含了整个世界。

I'm the reason your sound won't echo.

我认为我们在亚马逊有一种独特的文化，这种文化鼓励失败。我们在亚马逊有一种独特的文化，这种文化鼓励长期思考。