衡量一个文明的标准是它如何对待其最弱的成员。
成功的唯一方法是努力工作,永不放弃。
The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.
The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'
理解某事的最好方法就是尝试去改变它。
Life is too short to hold grudges.