正人之言，明知其为我也，感而未必悦；邪人之言，明知其佞我也，笑而未必怒。于此知从善之难。
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。
"The beauty of literature lies in its ability to transcend time and space, connecting souls across generations."
It seems to me that if you or I must choose between two courses of thought or action, we should remember our dying and try so to live that our death brings no pleasure to the world.
The beauty of mathematics is that it is one of the few areas of human endeavor where absolute truth can be known.
自由是生命的呼吸。
质量不是一种行为，而是一种习惯。