成为英雄的最大障碍是怀疑自己是否会证明自己是个傻瓜；真正的英雄主义是抵抗这种怀疑，而最深刻的智慧是知道何时应该抵抗，何时应该服从。
The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt, and the profoundest wisdom to know when it ought to be resisted, and when it be obeyed.
Success in farming comes from understanding nature, not fighting it.
O sonho é a matéria-prima da realidade.
保持进步的唯一方法是不断推动自己。
The relationship between wages and employment is not as straightforward as some models suggest.