Mark Zuckerberg, co-founder of the world's largest social network and Harvard dropout, returned to the university on Thursday to deliver its 366th commencement speech. He urged the graduates not only to find a purpose for themselves in the world but also to help others do the same.

Zuckerberg made the call while likening himself to graduates: "I'm not here to give you the standard commencement about finding your purpose. We're millennials. We'll try to do that instinctively."

"To keep our society moving forward, we have a generational challenge — to not only create new jobs, but create a renewed sense of purpose," Zuckerberg said. "It's not enough to have purpose yourself. You also have to create a sense of purpose for others."

The Facebook CEO's speech also dived into the power of entrepreneurship and how big ideas and powerful thinking can change the world, an idea that hits close to home for Zuckerberg, as he dropped out of Harvard in his sophomore year to pursue Facebook.

Later in his address, the billionaire touted a political agenda as he encouraged the graduates to help fight climate change and called for access to affordable healthcare and income equality.

Zuckerberg recently embarked on multiple cross-country trips as part of his new resolution of self-improvement. This trip, alongside his influential Harvard commencement speech, appears to show Zuckerberg developing a new face for himself in the public sphere, which has driven speculation that he may run for political office.

However, just days before delivering the commencement speech, Zuckerberg shot down speculations when he wrote in a Facebook post that he is "not" running for office. He simply wants to get a "broader perspective on life."