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In mathematics, the art of proposing a question must be held of higher value than solving it.

There can be no permanent progress in the battle against hunger until the agencies that fight for increased food production and those that fight for population control unite in a common effort.

如果你讓他們自由，人們就像日落一樣美妙。當我看著日落時，我不會說：“把右邊的橙色調柔和一點。”我不會試圖控制日落。我敬畏地看著它展開。