Yang Lin, Wharton School University of Pennsylvania graduate student, receives a lesson on how to get over a certain obstacle by Sgt. Eusebio Lopez, an OCS instructor, during the Quantico Leadership Venture at OCS on Sept. 21. The venture is a bi-annual event that exposes students to the leadership development and evaluation process used by the United States Marine Corps. (U.S. Marine Corps photo by Lance Cpl. Antwaun L.
