The greatest threat to our forests is not the axe, but indifference.

传记的挑战不在于发现事实 - 而在于发现事实背后的意义。

The next breakthrough won't come from doing things better, but from doing better things.

When you are doing what you love, you don't feel the pressure.

【原文】子贡曰：“贫而无谄，富而无骄，何如?”子曰：“可也。未若贫而乐，富而好礼者也。”子贡曰：“《诗》云：‘如切如磋，如琢如磨’，其斯之谓与?”子曰：“赐也，始可与言《诗》已矣，告诸往而知来者。”【译文】子贡说：“贫穷却不阿谀奉承，富贵却不狂妄自大，怎么样?”孔子说：“可以了。(但是)不如贫穷而乐于道，富贵而谦虚好礼的好。”子贡说：“完善自身的修养，既像雕刻骨器，又像雕刻象牙；既像雕琢玉器，又像雕刻石头一样下功夫，恐怕说得就是这个道理吧?”孔子说：“子贡啊，现在可以与你谈诗了。提起学过的知识，你就知道将要学的知识，并有所发挥。”

The darkness is not outside, but within us.

我不是说唱歌手，我是个玩说唱的诗人。

The paper industry has a responsibility to lead the way in sustainable practices—we can't wait for others to show us how.

数学不是关于数字、方程、计算或算法的：它是关于理解的。