Patience and persistence are the keys to unlocking the mysteries of mathematics.
The more time I spent on mathematics, the more excited I got.
有的鸟终究是关不住的,因为他们的羽翼太过光辉,当他们飞走时,你会由衷的祝贺他们获享自由;然而无奈的是:你得继续在这无聊之地苟且偷生。
伟大的设计解决问题,而不仅仅是看起来好看。