If you think you're too old to go back to college, you'd be wrong. Take it from Nola Ochs, Leo Plass and 'Grandpa' Chao, who have inspired students and seniors from around the world. These senior (citizens) can show us all a thing or two about perseverance and learning. It's never too late. These amazing seniors were in their 90s when they accepted their college diplomas. Do you have an amazing graduate story to share? Tell us here. We can all use a little inspiration.