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怯懦囚禁靈魂，希望還你自由。

如果你試圖創建一家公司，就像烤蛋糕一樣。你必須按正確的比例擁有所有原料。

And I hope you will come back here to Harvard 30 years from now and reflect on what you have done with your talent and your energy. I hope you will judge yourselves not on your professional accomplishments alone, but also on how well you have addressed the world's deepest inequities…on how well you treated people a world away who have nothing in common with you but their humanity.

In the face of climate change, the oil and gas industry must evolve or risk becoming obsolete.