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。

数学之美在于它能够揭示现实的隐藏结构。

音乐有力量振奋人心、带来安慰并激励改变。

Sustainability isn't a trend—it's a responsibility we owe to future generations.

The truth is you don't know what is going to happen tomorrow. Life is a crazy ride, and nothing is guaranteed.

记忆是连接过去与未来的桥梁。

最好的艺术几乎是一种报道形式。