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"Matching methods can be a powerful tool when randomization is not possible."

The duty of man is the same in respect to his own nature as in respect to the nature of all other things.

能源轉型不僅僅是更換燃料；它關乎整個系統和思維方式的轉變。

I want to stand as close to the edge as I can without going over. Out on the edge you see all kinds of things you can't see from the center.

人生就是一列開往墳墓的列車，路途上會有很多站，很難有人可以自始至終陪著走完。當陪你的人要下車時，即使不舍也該心存感激，然后揮手道別。