The secret of change is to focus all of your energy not on fighting the old, but on building the new.
改变的秘诀是将你所有的精力集中在建设新事物上,而不是与旧事物斗争。
A good mathematician is one who can see analogies between theorems; a great mathematician is one who can see analogies between analogies.
诗人是一个能在最丑陋的事物中找到美的人。
实现明天的唯一限制是我们今天的疑虑。