我害怕改变，你呢？

出自《魏源集·默觚下·治篇五》。三代以上，天都跟现在的天不一样，地都跟现在的地不一样，人也跟现在的人不一样，物也和现在的物不一样。

The Langlands program is a framework for understanding the unity of mathematics.

The novel is a mirror that reflects not what is, but what could be.

市场竞争激烈，只有不断学习才能立于不败之地。

The Worldly Hope men set their Hearts upon Turns Ashes—or it prospers; and anon, Like Snow upon the Desert's dusty Face, Lighting a little hour or two—is gone.