Light is the great revealer of form.
A good mathematician is someone who can see analogies between theorems; a great mathematician is someone who can see analogies between analogies.
译文：醉酒后挑亮油灯端详宝剑，梦中又回到了号角声震天的军营。把烤牛肉分给部下享用，让乐器奏起悲壮的边塞战歌，秋高气爽的战场上正检阅军队。
Doublethink means the power of holding two contradictory beliefs in one's mind simultaneously, and accepting both of them.