这一切，以及那数不清的眼神与微笑，数不清的思想和言语，我都想一一记录下来。

The true value of a forest is measured not just in board feet, but in biodiversity and ecosystem health.

与没见过的老虎还可以亲近，但与很熟悉的人不能够太亲。

数学家最好的作品是艺术，一种高度完美的艺术，像想象的最秘密的梦想一样大胆，清晰而透明。

I think it's important to be yourself and not try to be someone else.

The world is not run from where he thinks. Not from castle walls, but from countinghouses, not by the call of the bugle but by the click of the abacus, not by the grate and click of the broadsword but by the scrape of the pen.