The best performance improvement is the transition from the nonworking state to the working state.

The whites came to this land for a fresh start and to escape the tyranny of their masters, just as the freemen had fled theirs. But the ideals they held up for themselves, they denied others.

要想成功，你必须愿意失败。

数学是模式的科学，我们研究它们以学习如何逻辑地、批判地和创造性地思考。

制度性歧视比个人努力更能决定命运。