The writer's task is to illuminate the dark corners of the human heart.

实现明天理想的唯一限制是我们今天的疑虑。

Take note if you find yourself wondering “Where is my good knife？ Or， where is my good pen？” That means you have bad ones. Get rid of those.

To understand psychology, observe behavior in its natural context.

"Sometimes, the hardest thing and the right thing are the same."

【译文】古人学习的人是为了提高自己，现在学习的人是为了炫耀给别人看。