小说是一面沿着大路携带的镜子。有时它向你展示天空的蓝色，有时则是路上搅动的泥泞。
The United States has no permanent enemies, no permanent friends, only permanent interests.
The world owes all its onward impulses to men ill at ease; the happy man inevitably confines himself within ancient limits.
我很幸运能做我喜欢的事情。
学习数学的唯一方法就是做数学。
The rat in the maze is not just learning a series of turns, but is building up a cognitive map of the whole situation.