When Bonner Paddock Rinn falls down, he gets back up in a big way. He has spent his life shaking off skinned knees, broken bones and doctors’ warnings. And at 33, he became the first person diagnosed with cerebral palsy to climb Mt. Kilimanjaro unassisted. In his new book One More Step, Bonner shares a gripping story of human perseverance and adventure that demonstrates we all have a choice: either define our lives by limitations, or discover just how much we can achieve when we push beyond them.