If you want to be the best, you have to do things that other people aren’t willing to do.

正派人的话，明明知道了为了我好，内心感激却未必高兴；奸邪人的话，明明知道是在奉承我，但听着十分顺耳，所以未必生气。由此可知听取忠言是多么艰难。

Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.

孔子说：“吃粗粮、喝白水、弯着胳膊当枕头，乐也在其中了！缺少仁义的富贵，对我来说，就象天上的浮云。”

Life is too short for long-term grudges.