マーク・ザッカーバーグのインスタグラム(zuck) - 5月27日 05時47分

Yesterday I delivered the commencement address at Harvard. This speech was personally important to me, and I've been writing it for a long time. My message was about purpose. As millennials, finding our purpose isn't enough. The challenge for our generation is to create a world where every single person has a sense of purpose. That's the key to true happiness, and the only way we'll keep our society moving forward.

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