遗忘是失去自己的一部分，而记住则是让它继续存在。

贫家如果要仿效富家的穿衣吃饭及庞大的花费，那就一定会很快招致灭亡。 

只要你不放弃尝试，就永远不会失败。

Democracy is the worst form of government except for all those other forms that have been tried from time to time.

科学的乐趣在于旅程，而不仅仅是终点。