过去在我心中跳动，就像第二颗心脏。
The past beats inside me like a second heart.
The best books leave room for the reader's imagination.
A man, as a general rule, owes very little to what he is born with – a man is what he makes of himself.
在计算机科学中，我们经常处理那些容易陈述但难以解决的问题。