Every generation has its defining works. More than 300,000 people worked to put a man on the moon – including that janitor. Millions of volunteers im… - Mark Zuckerberg

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Every generation has its defining works. More than 300,000 people worked to put a man on the moon – including that janitor. Millions of volunteers immunized children around the world against polio. Millions of more people built the Hoover dam and other great projects. These projects didn’t just provide purpose for the people doing those jobs, they gave our whole country a sense of pride that we could do great things.