世界上充满了这样的人,他们心目中令人满意的未来,实际上是对理想化过去的回归。
数学的美在于它能够用一种既精确又普遍的语言来描述宇宙。
自由之树需要经常用爱国者和暴君的鲜血来浇灌。
经验不过是人们给自己的错误取的名字。
I believe that man will not merely endure: he will prevail. He is immortal, not because he alone among creatures has an inexhaustible voice, but because he has a soul, a spirit capable of compassion and sacrifice and endurance.
The stream of thought is the stream of life solving its problems.