过去是幽灵，未来是梦，我们拥有的只有现在。

"A man is rich in proportion to the number of things he can afford to let alone."

The widespread adoption of drones will reshape many traditional industries.

我们先养成习惯，然后习惯造就我们。

每个单子都反映了整个宇宙的角度，但有不同的深度和清晰度。