永远不要让你的道德感阻止你做正确的事。
Every artist dips his brush in his own soul, and paints his own nature into his pictures.
When you meet with opposition, even if it should be from your husband or your children, endeavor to overcome it by argument and not by authority, for a victory dependent upon authority is unreal and illusory.
The study of mathematics is a journey into the unknown, where each discovery opens the door to new mysteries.
