Education is a lamp, but too many never find the switch.
不必担忧财富不多，只须担忧财富不平均，不必担忧人口稀少，只须担忧境内不安宁。……既来了，要使他们安家乐业。
数学是逻辑思想的诗歌。
在数学中，提出问题的艺术必须比解决问题更有价值。
"There is nothing to writing. All you do is sit down at a typewriter and bleed."