The only freedom which deserves the name is that of pursuing our own good in our way， so long as we do not attempt to deprive others of theirs or impede their efforts to obtain it.

农业的进步不仅要以产量衡量，还要以长期的环境影响来衡量。

The best stock to buy is the one you already own.

故事的力量不在于其情节，而在于其与读者自身经历产生共鸣的能力。