“Founding a company is hard. Most of it isn't smooth. You'll have to make very hard decisions. You have to fire a few people. Therefore, if you don't believe in your mission, giving up is easy. The majority of founders give up. But the best founders don't give up.”

American entrepreneur and philanthropist, born in 1984. He co-founded Facebook in 2004, transforming it into a global social media platform that reshaped digital communication. His leadership has also expanded into tech innovation, philanthropy, and public policy debates.