The mathematical formulation of a problem is often more essential than its solution, which may be merely a matter of mathematical or experimental skill.
问题的数学表述通常比其解决方案更重要，后者可能仅仅是数学或实验技巧的问题。
Sustainability isn't a trend—it's our responsibility to the next generation.
It's not about money. It's about the ability to make things happen.
The farmer is the cornerstone of our civilization.
写作的行为是一种乐观的行为。如果你觉得它不重要，你就不会费心去做。
不要弯曲；不要淡化；不要试图让它合乎逻辑；不要根据时尚编辑自己的灵魂。相反，无情地追随你最强烈的痴迷。
道，真实可信，无为且没有形相，可以流传而不可以传授，可以得到却不能够看见；自己便是本根，没有天地之前就已经存在；鬼神天帝因它而化，天地因它而生；在太极之上而不为高，在六合之下而不为深，生在天地之先而不为亘久，长于上古之时却不为老。