人心比山川更险恶，比了解天象更困难。

I sent my Soul through the Invisible, Some letter of that After-life to spell: And by and by my Soul return'd to me, And answer'd "I Myself am Heav'n and Hell."

【原文】子夏为莒父宰，问政。子曰：“无欲速，无见小利。欲速则不达，见小利则大事不成。”【译文】子夏到莒父做地方长官，问怎样为政。孔子说：“不要只求速成，不要贪图小利。想求速成，反而达不到目的；贪图小利，就做不成大事。”

We shouldn't teach great books; we should teach a love of reading.

自满是医学进步的敌人。