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"The past is a foreign country; they do things differently there."

The most profound discoveries in mathematics often come from the simplest observations.

"We are all time travelers, moving forward at the speed of life, but always looking back."

如果經(jīng)濟(jì)學(xué)家能夠使自己被認(rèn)為是謙遜的，能干的，與牙醫(yī)水平相當(dāng)?shù)娜?，這是好的。