"Books are the keys to unlocking our potential."

理解变化的唯一方法是投入其中，随之而动，加入舞蹈。

出自《魏源集·都中吟十三首》。洋人的情况、技术和版图，我都了解得像万里大的手掌中玩米和沙子一样。知己知彼是兵家的策略，一定要知道谁主掌着典属国的职位。

身份不仅关乎你来自哪里，也关乎你将去向何方。

解释：帮助困难的人毫不倦怠，追求善行从不满足。

The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.

生活是一场冒险，不是一次包办旅行。

"We are all in the gutter, but some of us are looking at the stars."

我们今天在水产养殖中的每一个决定都塑造着我们留给明天的遗产。

暴力是无能者的最后避难所。

——〈在香港大学的演说〉（又名〈革命思想之产生〉），1923年2月19日