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.
快乐的情感是来源于与不好的事的对比,而快乐本身并没有任何意义。
Mathematics is the foundation upon which all science is built.
"What we choose to remember says as much about us as what we choose to forget."