文章的难以精工，就像器物的难以制成一样。

I'm very proud to be black, but black is not all I am. That's my cultural historical background, my genetic makeup, but it's not all of who I am nor is it the basis from which I answer every question.

大脑是一个复杂的系统，我们才刚刚开始理解它是如何工作的。