在文明社会中，唯一合法行使权力来逆行对方意愿的目的，是为了防止对他人的伤害。
The only purpose for which power can be rightfully exercised over any member of a civilized community， against his will， is to prevent harm to others.
在科学中最令人兴奋的短语，预示着新发现的，不是“我找到了！”而是“这有点奇怪……”
理论计算机科学中的挑战不仅仅是解决问题，而是理解问题解决的本质。
新闻是某些地方某些人想要压制的；其余的都是广告。
计算理论不仅仅是关于解决问题，还涉及理解可计算性的极限。
I do not know what I may appear to the world， but to myself I seem to have been only like a boy playing on the sea-shore， and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary， whilst the great ocean of truth lay all undiscovered before me.