The joy of chemistry is in seeing the invisible become visible.

The only way to understand another culture is to assume the frame of reference of that culture.

美好生活是一个过程，而不是一种状态。它是一个方向，而不是一个目的地。

The function of freedom is to free someone else.

世界的问题在于愚蠢的人自以为是，而聪明的人充满怀疑。