False happiness renders men stern and proud， and that happiness is never communicated. True happiness renders them kind and sensible， and that happiness is always shared.

采石业的创新不仅关乎机械，还关乎远见和可持续性。

"Innovation is the key to solving many of the world's problems, and it requires freedom to experiment and take risks."

The only thing that’s keeping you from getting what you want is the story you keep telling yourself.

最好的扶贫计划是一个能提供好工作的增长型经济。