Axios Finish Line: The stride and joy of witnessing a marathon

You can learn a lot about the indomitable nature of the human spirit by training for and tackling a marathon.Why it matters: It's a tremendous physical feat. But standing at the finish line — watching thousands of people arrive after 26.2 miles of pain, doubt and persistence — may be even more gratifying, Axios' Bill Kole writes.I witnessed it this week at the atmospheric end of the Boston Marathon.Zoom in: I've spent years chasing finish lines myself.A Massachusetts native, I ran track and cros...