解释：伟大而不骄傲，勤劳而不自夸有功。
科学家与农民之间的合作是解决未来粮食挑战的关键。
A miracle:an event described by those to whom it was told by men who did not see it.
λ演算本质上是一个关于函数及其应用的理论。
The best way to predict the future is to create it.
