True progress in agriculture is measured by health, not just yield.
农业的真正进步是用健康衡量的,而不仅仅是产量。
你写作不是因为你想要说些什么;你写作是因为你有话要说。
一个人就是一个人,无论多么渺小。
The most important thing in mathematics is to understand the concepts, not just to memorize formulas.