没有人值得你流泪,值得让你这么做的人不会让你哭泣。
膨胀宇宙模型表明,宇宙在大爆炸后的最初几分之一秒内呈指数级膨胀。
国家不是一个慈善机构;它是一个强制组织。
In the end, we will remember not the words of our enemies, but the silence of our friends.
"We are what we repeatedly do. Excellence, then, is not an act but a habit."