A good mathematician is one who can see analogies between theorems; a great mathematician is one who can see analogies between analogies.
一个好的数学家是能看到定理之间类比的人；一个伟大的数学家是能看到类比之间的类比的人。
I'm a catalyst for change... You can't be an outsider and be successful over 30 years without leaving a certain amount of scar tissue around the place.
Life is not like cooking, where you can prepare all the ingredients before you start cooking.
Time is a slippery thing: lose hold of it once, and its string might sail out of your hands forever.
时间是个滑溜溜的东西：一旦失去控制，它的线索可能会永远从你手中溜走。
To be happy is only to have freed one's soul from the unrest of unhappiness.