He had lots of advice for the Class of 2019 and he touched on many topics from digital privacy to his colleague and friend Steve Jobs.
"Your time is limited, so don't waste it living someone else's life." Wise words from Steve Jobs who stood on the very same stage.
Cook continued, "Here's my corollary: You mentors may leave you prepared, but they can't leave you ready."
Watch highlights of Cooks commencement speech above.