To understand recursion, one must first understand recursion.
要理解递归,首先必须理解递归。
我不能演戏,因为戏剧不是真实生活,而且里面充满了做毫无意义事情的人。
"Courage doesn't always roar. Sometimes courage is the quiet voice at the end of the day saying 'I will try again tomorrow.'"