I don't sing because I'm happy; I'm happy because I sing.
不要让任何人告诉你你不能做什么。
2007年:贝索斯致股东信《我们改变工具,工具也改变我们》
When I look at the world I'm pessimistic, but when I look at people I am optimistic.
Investing in cleaner coal technologies is investing in our planet's future.