The power elite is composed of men whose positions enable them to transcend the ordinary environments of ordinary men and women; they are in positions to make decisions having major consequences.

你们会在严峻的现实之下选择放弃，还是会义无反顾地前行？

数据抽象是将特定数据集简化为整体的简化表示。

I always believe that the best is yet to come.

试图在不激发学生学习欲望的情况下进行教学的老师，就像在冷铁上敲打。

"Writing is a way of thinking, a way of understanding the world."

我们都在阴沟里，但仍有人仰望星空。

要理解人类，必先理解我们的起源。