书籍是想象力的钥匙,而想象力是未来的钥匙。
The world is full of people who have never, since childhood, met an open doorway with an open heart.
世界上充满了自童年以来从未以开放的心态迎接开放门道的人。
关于人性,唯一真正知道的是它是会变化的。
"The only way to have a friend is to be one."
True progress in farming means leaving the land better than we found it.
数学的本质不仅在于解决问题,还在于提出正确的问题。