The method of psychology must be rigorously empirical.

It is not enough to observe and experiment, theorize and calculate. One must also imagine.

失败只是另一种学习方式。

无思无虑，心境应当平静如水；不求冒进也不忘记，学业当如流水一般永无止境。

心理学的任务是研究经验的直接内容及其组合。