Mrs. March knew that experience was an excellent teacher, and when it was possible she left her children to learn alone the lessons which she would gladly have made easier, if they had not objected to taking advice as much as they did salts and senna.

农业成功的真正标准不仅仅是产量，还有恢复力。

A writer must be a keen observer of the world and a deep thinker of the heart.

对我来说，最令人兴奋的事情是看到我们所做工作的影响。