The more the division of labor and the application of machinery extend, the more does competition extend among the workers, the more do their wages shrink together.

种一棵树最好的时间是20年前，其次是现在。

The world may be cruel, but it is also beautiful.

In matters of style, swim with the current; in matters of principle, stand like a rock.

农业的真正进步意味着让土地比我们发现时更好。