Characters must surprise their creators.
There are dark shadows on the earth, but its lights are stronger in the contrast.
The only limit to our realization of tomorrow will be our doubts of today.
成功不在于金钱或名声，而在于做你热爱的事。
任何认真从事任何科学工作的人都会意识到，在科学殿堂的大门上方写着这样的文字：你必须有信仰。