在网球中,心态是最重要的。
"Love is nothing stronger than a boy with luv."
书籍是通往其他生活的窗户。
All things excellent are as difficult as they are rare.
【大意】一个国家如果没有正义,即使再强大也定会灭亡。一个人如果没有良善的志趣,即使勇猛也必会遭遇挫伤。
Every aspect of learning or any other feature of intelligence can in principle be so precisely described that a machine can be made to simulate it.