U.S. Air Force Chief <PERSON>. <PERSON>, 633rd Air Base Wing command chief, gives opening remarks during a Dr. <PERSON>. Memorial Celebration at Langley Air Force Base, Va., Jan. 15, 2016. The event's theme, ``Remember! Celebrate! Act! A day on, not a day off,'' emphasized the importance of always striving for success. (U.S. Air Force photo by <PERSON>. <PERSON>)