Former VP Biden speaks to Harvard's graduating class of 2017

CAMBRIDGE, Mass. (KGO) -- Think big - that's the advice former Vice President Joe Biden gave at the annual Class Day address to Harvard's graduating class of 2017 on Thursday.

Biden told students they're graduating at a moment of great change.

Facebook founder Mark Zuckerberg is scheduled to speak at Harvard's commencement on Thursday. He posted a picture from his old dorm room, where he started Facebook.

Zuckerberg dropped out to focus on its creation. On Thursday, he'll receive an honorary degree.
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