Given the task definition and input, reply with output. In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.

Image copyright Reuters 
  
 Facebook founder Mark Zuckerberg has returned to Harvard University under rainy skies to give a graduation speech and receive an honorary degree. 
  
 The world's fifth-richest person, worth $62.3bn (£48.1bn), famously dropped out of Harvard after launching the global social-networking website. 
  
 Mr Zuckerberg called for students to "not only create new jobs, but create a new sense of purpose". 
  
 Political experts think he may be positioning himself to run for office. 
  
 During his remarks on Thursday, Mr Zuckerberg told graduates that "we live in an unstable time". 
  
 "There's pressure to turn inwards," he said about those that feel left behind by increased globalisation. 
  
 Image copyright Reuters Image caption His wife, Priscilla Chan, watched from the audience 
  
 Image copyright Reuters Image caption Zuckerberg, seated beside actor James Earl Jones, received an honorary Doctor of Laws degree 
  
 "This is the struggle of our time. The forces of freedom, openness and global community against the forces of authoritarianism, isolationism and nationalism." 
  
 With his wife, Priscilla, in the audience, he pointed to the dormitory where he launched Facebook, and remarked that meeting her there was the best thing to happen to him at the university. 
  
 Before giving remarks, he received an honorary Doctor of Laws degree during Harvard's 366th graduation ceremony. 
  
 Image copyright Facebook 
  
 On Wednesday, he did a Facebook Live broadcast from his old dorm room. 
  
 "This is literally where I sat," he says, pointing to a small wooden desk and chair inside Kirkland House, which is due to be renovated over the summer. 
  
 "I had my little laptop here. And this is where I programmed Facebook," he tells the camera. 
  
 Media playback is unsupported on your device Media caption Watch Mark Zuckerberg find out he's got into Harvard, as filmed by his dad, Edward 
  
 During his commencement address, Mr Zuckerberg told students: "There is something wrong with our system when I can leave here and make billions of dollars in ten years when millions of students can't afford to pay off their loans, let alone start a business. 
  
 "When you don't have the freedom to take your idea and turn it into a historic enterprise we all lose," he continued. 
  
 He told stories of meeting "children in juvenile detention and opioid addicts, who told me their lives could have turned out differently if they just had something to do". 
  
 The 33-year-old appeared to get choked up at one point during a story about an high school student who feared he would not be able to enrol in university because he was an undocumented immigrant. 
  
 More than 1.9 billion people log onto Facebook every day. 
  
 Since its launch in 2004, Facebook has inspired many other social media competitors, including Twitter, Snapchat and Instagram. 
  
 In 2007 another Harvard dropout returned for an honorary degree. 
  
 Bill Gates addressed students shortly after stepping down from the world's largest software company, Microsoft, to focus on his charity. ||||| Much of Zuckerberg's 30-minute speech focused on 'purpose'—a term he defined as working for something bigger than any individual person. 
  
 Facebook founder and Harvard dropout Mark E. Zuckerberg implored graduates to create “purpose” for themselves and others amid an “unstable time” in the United States during a rain-drenched Commencement address Thursday. 
  
 Much of Zuckerberg’s 30-minute speech focused on “purpose”—a term he defined as working for something bigger than any individual person. He said the biggest challenge facing Harvard’s Class of 2017 is to create a world “where everyone has a sense of purpose.” 
  
 “This is the struggle of our time,” he said. “The forces of freedom, openness and global community against the forces of authoritarianism, isolationism and nationalism. Forces for the flow of knowledge, trade and immigration against those who would slow them down.” 
  
 “This is not a battle of nations, it’s a battle of ideas. There are people in every country for global connection and good people against it,” he added. 
  
 Zuckerberg, who founded Facebook in his Kirkland House dorm room before dropping out, also took a few minutes to reflect on some “good memories” of his time at Harvard. He told the audience about the moment he found out he got into Harvard—he was playing a video game and “ran downstairs” to find his dad—and about the first lecture he attended at the College, a Computer Science 121 presentation given by former Dean of the College Harry R. Lewis ’68. Zuckerberg remembered showing up to that class with his t-shirt on “inside out” and the “tag sticking out the front.” 
  
 He also recalled some less happy memories, like the time he was called before the Administrative Board—then the College’s main disciplinary body—in 2003 for creating Facemash, a controversial site that allowed Harvard students to rank the attractiveness of their peers. In the opening lines of his speech, Zuckerberg gave a special hello to “members of the Ad Board” sitting in the audience. 
  
 Still, he said he remains fond of Harvard, the place where he met his wife Priscilla Chan ’07. Zuckerberg said he considers Facemash a vital part of his Harvard career, though he emphasized the website had little to do with the genesis of Facebook. 
  
 Referencing the 2010 biographical film “The Social Network,” Zuckerberg said, “That movie made it seem like Facemash was so important to creating Facebook—it wasn’t.” 
  
 “Without Facemash I wouldn’t have met Priscilla, and she’s the most important person in my life, so you could say it was the most important thing I built in my time here,” Zuckerberg added. 
  
 Earlier in the week, Zuckerberg stopped by his old dorm room in Kirkland. While in the room, Zuckerberg hosted a 23-minute live Facebook video with Chan, which eventually garnered over seven million views online. 
  
 Upon exiting Kirkland, Zuckerberg—clad in his trademark grey t-shirt and jeans—was immediately swarmed by students and tourists asking for pictures. 
  
 Zuckerberg has occasionally returned to Harvard’s campus over the course of his career. 
  
 —Staff writer Hannah Natanson can be reached at hannah.natanson@thecrimson.com. Follow her on Twitter @hannah_natanson. 
  
 —Staff writer Derek G. Xiao can be reached at derek.xiao@thecrimson.com. Follow him on Twitter @derekgxiao. 
  
  |||||

Almost 12 years after dropping out of Harvard, where the "Face Books" with pictures of people who lived in student dorms gave him an interesting idea for a website, Mark Zuckerberg returned Thursday to deliver a commencement address and receive an honorary degree. In his address, Zuckerberg looked back to good times at Harvard as well as clashes with administrators, the Crimson reports. The Facebook CEO told graduates that their biggest challenge will be to create a world where "everyone has a sense of purpose." He warned that the world faces a "battle of ideas," with the "forces of freedom, openness, and global community against the forces of authoritarianism, isolationism, and nationalism." Zuckerberg, who dropped out to concentrate on Facebook, which he launched from his dorm room in 2004, added: "There is something wrong with our system when I can leave here and make billions of dollars in ten years when millions of students can't afford to pay off their loans, let alone start a business." Zuckerberg, who received an honorary Doctor of Laws degree, also pointed out the dorm where he met wife Priscilla and said meeting her was the best thing that happened to him at Harvard, the BBC reports. Zuckerberg is now the world's fifth-richest person, though only the second-richest Harvard dropout: Bill Gates dropped out in 1975 to co-found Microsoft. (This video shows the moment Zuckerberg learned he had been accepted to Harvard.)