挑战在于使不可见的东西变得可见。

The boundaries which divide Life from Death are at best shadowy and vague. Who shall say where the one ends, and where the other begins?

Quality is not a trend; it is a tradition.

你叫不醒一个装睡的人。

经验的直接内容是唯一可以作为心理学研究主题的事实。