It's all about using alumni and classmate connections.

2. Alumni who are successful and generous: When Warby Parker co-founder and co-CEO Neil Blumenthal came back to Wharton in August 2011 to speak to a hungry, wide-eyed group of students during preterm, his story strengthened and further inspired my desire to build a company with a strong social mission. Following the talk, he was gracious enough to accept an invitation to coffee, and we began an ongoing dialogue. A year later, he opened up Warby Parker’s headquarters in New York City for my company’s first offsite. I could think of no better setting to inspire my team. Our companies share several things in common, not least among them the fact that we have strong social missions.