我们看起来似乎痛苦的试炼，往往是伪装起来的好运。
The great powers are always searching for opportunities to gain power at the expense of their rivals, and they will use force if they believe it will bring them strategic advantage.
安全必须始终是我们每天每项操作的首要任务。
Great things never come from comfort zones.
Purity of heart is to will one thing.
数学中最激动人心的时刻是当你意识到两个看似不相关的领域有着深刻的联系时。
To write a good love letter， you ought to begin without knowing what you mean to say， and to finish without knowing what you have written.