小于给定数的素数个数是该数的一个函数。
The most effective way to destroy people is to deny and obliterate their own understanding of their history.
I'm a person who likes to stand out.
真正的成功是按照自己的方式生活。
成功的关键是专注于目标,而不是障碍。
Literature is a memory, a look back at the past.