世界的救赎在于人类的苦难中。

If you want to understand a system, try changing it.

"We always overestimate the change that will occur in the next two years and underestimate the change that will occur in the next ten. Don't let yourself be lulled into inaction."

煤炭开采的创新不是要重新发明轮子，而是要让轮子更高效、更环保。