农业的效率不仅仅是产量的问题；它关乎资源管理。

"The joy of discovery is certainly the liveliest that the mind of man can ever feel."

It is wrong to have an ideal view of the world. That's where the mischief starts. That's where everything starts unravelling.

人们往往认为，现在的政客比过去的政客要糟糕得多。但我们往往忘记了过去的政客有多糟糕。