皱纹应当只是微笑留下的印记。
Wrinkles should merely indicate where smiles have been.
注释:菑畬(zī she耕耘)以心术为根本,以伦理为树干,以学问为良田,以文章为花萼,以事业为果实,以书籍为园林,以歌咏为音乐,以义理为食物,以著述为彩绣,以诵读为耕耘,以讨论学问为累积,以先贤的言行为师友,以敬忠笃信为修持,以行善降祥为给用,以乐天知命为依归。
Music is more than a beautiful melody. It is the deepest expression of the human soul.
Every mathematical problem has a solution; you just need to find the right perspective.
想想在“算法”和“程序”之间寻求根本区别所花费的所有精神能量。