你不仅要相信自己，还要相信你所做的事情。

可持续性不是一种选择，而是煤炭行业的必需品。

Every day is a new beginning.

The thing that we are trying to do at Facebook, is just help people connect and communicate more efficiently.

科学不是形式逻辑——它需要思想的自由发挥，与其他任何创造性艺术一样。