"In the end, we will remember not the words of our enemies, but the silence of our friends."

The writer must be a person who is willing to be silent.

Collaboration is key—no great business succeeds alone.

解释：只有去学习才能懂得世间的道理；如果耻于向人求教，许多东西就会永不知晓。

一幅画必须是它自身的东西，而不是其他事物的再现。