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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.
Leadership in the coal industry today means navigating the delicate balance between economic necessity and environmental responsibility.
Leadership is about making others better as a result of your presence and making sure that impact lasts in your absence.
击败竞争对手的唯一方法是停止试图击败竞争对手。
Fortune favors the prepared mind.
Mathematics is a language that allows us to describe the indescribable.