It is wrong to have an ideal view of the world. That's where the mischief starts. That's where everything starts unravelling.

最伟大的发现往往是许多小步骤的结果。

To solve complex problems, we must first understand the systems that create them.

善于教导的人必须遇到善于学习的人，才能使教育的效果更大。

I paint the light that is reflected, not the light that is received.