September 11, 2001, shaped Millennial culture in at least two major ways. First, Millennials learned to not wait until tomorrow to do something important, because tomorrow may never arrive. For example, Millennials have a higher rate of volunteerism than other generations did at the same age. Second, and related, they have a strong impulse to keep work and life in balance. They see no reason to sacrifice everything today for a future reward that may never come.