When men are most sure and arrogant they are commonly most mistaken， giving views to passion without that proper deliberation which alone can secure them from the grossest absurdities.

If you aren't in over your head, how do you know how tall you are?

天下的治乱不在于一个王朝的兴亡，而在于百姓的忧乐

One can't proceed from the informal to the formal by formal means.

Abundance is not something we acquire. It is something we tune into.

诗人是一个看世界并看到它本来面目，但也看到它可能成为什么样子的人。

The true wealth of mining lies not just in the ore extracted, but in the lives we uplift.

对来自学生的批评应该本着友好的精神来接受，学习材料的积累不应该扼杀学生的独立性。