天下的道理，归根结底只有一个。

愉快是健康的最佳促进者。

光是建筑中最重要的材料。

The world is so unpredictable. Things happen suddenly, unexpectedly. We want to feel we are in control of our own existence. In some ways we are, in some ways we're not.

真正的勇气是即使知道可怕，也要继续前进。