痛苦是净化灵魂的火焰。

The separation of law and morals is a necessary condition for the existence of a legal system.

重要的是懂得如何平静地对待一切。

You have to write the book that wants to be written. And if the book will be too difficult for grown-ups, then you write it for children.

Perception is not determined simply by stimulus patterns; rather it is a dynamic searching for the best interpretation of the available data.

学习在于改变介于刺激和反应之间的某些中介过程。