对于那些感受的人来说，世界是一场悲剧，但对于那些思考的人来说，世界是一场喜剧。
"The world is a tragedy to those who feel, but a comedy to those who think."
出自《魏源集·默觚下·治篇五》。三代以上，天都跟现在的天不一样，地都跟现在的地不一样，人也跟现在的人不一样，物也和现在的物不一样。
The only limits in life are the ones you set for yourself.
And when his audience grew bored, he would spring into the air and do a back flip with a half twist.
Scientific curiosity must be matched with commercial discipline to bring treatments to those who need them.
