The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.

这类波可以像光波一样被反射、折射和偏振。

The mind is everything; what you think, you become.

The supreme happiness of life is the conviction that we are loved.

我对那些已婚有孩子还要工作的女性充满敬意，我不知道你们是如何做到的。