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能源的未來在于傳統(tǒng)資源與可再生替代品之間的平衡。

Flow is being completely involved in an activity for its own sake. The ego falls away. Time flies. Every action, movement, and thought follows inevitably from the previous one, like playing jazz. Your whole being is involved, and you're using your skills to the utmost.

Silence is the perfectest herald of joy.

做數(shù)學(xué)就是同時(shí)參與創(chuàng)造和發(fā)現(xiàn)的行為。