The advancement of mathematics is due to those who are driven not by the desire for application but by the joy of discovery.

A hundred times every day I remind myself that my inner and outer life are based on the labors of other men, living and dead, and that I must exert myself in order to give in the same measure as I have received and am still receiving...

质量是免费的。它不是礼物，但它是免费的。花钱的是那些不质量的东西——所有那些没有第一次就把工作做好的行为。

Circular economy isn't an option anymore; it's the only way forward for responsible manufacturing.

切东西的时候不要冲着自己。

最可持续的农场是年复一年保持盈利的农场。

每个人都是天才。但如果硬要以鱼儿爬树的本领，来评估它的能力，它这辈子都会觉得自己是条蠢鱼。