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Problem-solving often requires restructuring one's mental representation of the situation.

導(dǎo)師的職責(zé)是指導(dǎo)孩子的智能活動和孩子的心理。

自由的代價是永恒的警惕。

我從來都不是天生的，我所做的只是不斷嘗試。

我從不考慮錯失關(guān)鍵球的后果……當(dāng)你考慮后果時，你很可能會失誤。

"The best way to learn mathematics is to do mathematics."

To live under the American Constitution is the greatest political privilege that was ever accorded to the human race.

"Hope is a verb with its sleeves rolled up."

我永遠(yuǎn)無法安全；我總是試圖逆流而上。每當(dāng)我完成一件事，我就會設(shè)定一個更高的目標(biāo)。這就是我走到今天的方式。