La vertu ne peut aller sans la liberté.

Patience is the secret ingredient in every successful bake.

所有人类行为都有以下七个原因中的一个或多个：机会、自然、强迫、习惯、理性、激情和欲望。

Men and women differ in their reproductive strategies because they have faced different adaptive problems throughout evolutionary history.

写作是一种更强烈地体验生活的方式。

Psychology as the behaviorist views it is a purely objective experimental branch of natural science.