出自先秦《荀子·解蔽》。大凡是人，往往都有惑于枝节问题而看不清大局的毛病。说明人性的弱点：看问题不全面，往往惑于表面现象，结果“只见树木，不见森林”，“捡了芝麻，丢了西瓜”。

要边看在看走来上的了以由仅仅是为长久的安眠作准备。

The past is a ghost that won’t stop haunting you.

Psychology is concerned with the what and how of mental life, not the why.

I have never been able to write a happy play. I can't. I can write a funny play, but I can't write a happy play.