唯一能替代一件艺术品的,是另一件艺术品。
在山的静默中,人发现风的流动;在森林的寂静中,人听见大地的声音。
We're told, from many sources, that any onecan achieve anything. We've done away with the caste system, we are now in a system where anyone can rise to any position they please. And it's a beautiful idea. Along with that is a kind of spirit of equality; we're all basically equal. There are no strictly defined hierarchies. There is one really big problem with this, and that problem is envy.
Every barrel of oil we produce should be done with a focus on minimizing our footprint.
永远不要停止学习,因为世界从未停止变化。
Natural experiments are a powerful tool for understanding causal relationships in the real world.