Millennials: a generation always in the news--and not just in mainstream media but in the more powerful and influential news outlet, social media. This generation has attention unlike any before (at least not since the Baby Boomers), and it is changing our world in ways we have yet to fully realize. Millennials are challenging the norms of previous generations, from the environment to technology to lifestyle. Clashes of the old and the new are inevitable. This essay considers older generations' perceptions of Millennials, analyzes these perceptions and Millennials' arguments against them, and considers how mentoring can help us understand these differences in order to better our society.