Jack Abraham, 25, is a successful entrepreneur. In 2008, he left Wharton to found Milo.com, a shopping engine that searches local store shelves in real time to find the best prices and availability for products of all kinds. In December 2010, eBay bought Milo.com for a reported $75 million. Abraham spoke with Knowledge@Wharton High school from his office in San Jose, Calif., about the triumphs and challenges of entrepreneurship -- starting with his days at Langley High School in McLean, Va. -- and what it takes to succeed.

Millionaire at 25: Jack Abraham on What It Takes to Be a Successful Entrepreneur

G.J. Melendez-Torres graduated from Wharton in 2011 with a BS in economics (health care management & policy) and the School of Nursing with a BS in nursing. He is now continuing toward a master's degree in advanced practice and psychiatric/mental health nursing. As a result of winning a Marshall Scholarship, Melendez-Torres is currently studying at the University of Oxford, free of cost. Knowledge@Wharton High School’s Sherry Yang caught up with G.J. before graduation to discuss his various interests, including his deep involvement in interfaith issues outside the classroom.

A ‘Gigantic Science Nerd’ in High School Advocates Opening Your Heart to New Experiences and Unexpected Paths

High school freshman and technology devotee Lane Sutton started KidCriticUSA.com when he was 12 and now, a mere two years later, he is building his rep as a social media strategist. In addition to running a consulting business, he speaks at schools and tech conferences about the social media revolution, privacy and online security and getting started on Twitter. Sutton’s latest strategy involves balancing business and school: “Homework and family time have always come first.”

Social Media Strategist Lane Sutton: A ‘Digital Native’ on a Mission

Yago Arbeloa is a successful Spanish Internet entrepreneur, investing in such projects as Sync.es, Voila.tv and Twync.es, the first Twitter platform sponsored in Spanish. Arbeloa talked with Knowledge@Wharton High School (in more than 140 characters) about launching his online career, the importance of partnership agreements and why aspiring Internet business owners need to understand the concept of "scalable" if they hope to attract investors.

Spanish Internet VIP Yago Arbeloa: ‘It Is Important to Take Advantage of the Moment’

Though best known as an actor, Richard Dreyfuss has lately turned some of his attention to helping young adults learn more about the founding ideals of the United States. His nonprofit, The Dreyfuss Initiative, provides interactive educational materials for teachers, parents and students. The Oscar winner recently sat down with Knowledge@Wharton High School to talk about what young people need to know about government, and the lessons that have been important to his development as a citizen.

Actor Richard Dreyfuss Talks Greek Mythology, ‘Maligned Heroes’ and How to Become A More Engaged Citizen