无论多么聪明的人,在他年轻时都曾说过或做过一些事情,后来回想起来会感到不快,以至于如果可能的话,他会很高兴地从记忆中抹去。
纯粹自然状态的条件...是每个人对每个人的战争状态。
The power of mathematics lies in its ability to simplify the complex.
Hope is the most beautiful people have, as long as they do not give up,hope will always be accompanied by.