He thought to himself that he could get richer by making them work harder.
他心中盘算着，如果叫他们更卖力地干，他就可以发更大的财。
The richer peasants were buying chemical fertilizer, but the co-op could not afford it.
比较富裕的农民这时购买化肥，但合作社却买不起。
Avarice makes rich people want to become even richer.
贪婪使富人想要更富.
