势为天子,未必贵也;穷为匹夫,未必贱也。贵贱之分,在行之美恶。
有权势的天子,也未必尊贵;穷苦的平民,也未必低贱。贵贱的分别,在于行为的美恶。
世界是一本书,不旅行的人只读了一页。
The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'
Evolution is the greatest story ever told.