In science, we try to explain what we don't understand. In mathematics, we try to understand what we can't explain.

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.

成功？我不知道这个词是什么意思。我很开心。但成功，这取决于在某人眼中成功意味着什么。对我来说，成功是内心的平静。那对我来说就是美好的一天。

赚大钱的关键不在于买卖…而在于等待。