Shiza Shahid began volunteering in women's prisons at 14 years old. At 16, she began a year-long experience as the only female volunteer in an earthquake relief camp. It probably goes without saying that by the end of her teenage years, she'd figured out a lot about life. Now she runs the Malala Fund, which advocates for girls' education all over the world. Shahid's views on life and what we can do to if we really want to make a difference are pretty kick ass.