Tonight at the PandoMonthly fireside chat with Dustin Moskovitz, the Facebook co-founder discussed some of his early days at Harvard and the path that led to the founding of the world’s largest social network.

Host Sarah Lacy said his ability to get good grades while building the company was “just annoying.”  Moskovitz, slightly bashfully, said “I’ll tell you a story that I think many people here will find heartening.”

“I ended up taking Intro to Computer Science the Fall before we started Facebook. My reasoning, believe it or not, was that I knew Mark was good at programming, and I figured he could help me out with my homework.” His plan didn’t work out as planned, and it ended up being the worst grade he earned during his tenure at Harvard. What was this embarrassing mark? B+.

Moskovitz said he hadn’t imagined himself as an entrepreneur or a founder. The idea was much less popular in the early 2000s. Zuckerberg, on the other hand, always had projects on the side and had made a good bit of money in high school, building large websites. The two founders obviously complimented each other and quickly began to see the vision of Facebook becoming a big company.

Moskovitz, however, is notorious for having a larger vision earlier than anyone else on his founding team. He said, “My belief was always that it would be quite large. It was fairly ubiquitous at Harvard, seemingly on every screen. But, I was probably just one to two years ahead of everyone else.”