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A word after a word after a word is power.

Innovation is not a slogan, but action.

The environment shapes behavior through the mechanism of reinforcement.

The things we admire in men, kindness and generosity, openness, honesty, understanding and feeling, are the concomitants of failure in our system. And those traits we detest, sharpness, greed, acquisitiveness, meanness, egotism and self-interest, are the traits of success.

"The past is never dead. It's not even past."

"A good picture book is a silent conversation between the artist and the child."

You have to spend some energy and effort to see the beauty of math.

“唯一確定的是不確定性。”