Acts 20:20 "How I kept nothing back that was helpful, but proclaimed it to you, and taught you publicly and from house to house..."

What causes a man to leave everything to follow Jesus? What produces a drive to make a distinguished learned man to live a simple life and go house to house to tell people about Jesus?

And He has said to me, "My grace is sufficient for you, for power is perfected in weakness." Most gladly, therefore, I will rather boast about my weaknesses, so that the power of Christ may dwell in me. -2 Corinthians 12:9 

I watched a boxing game a few days ago. It was deemed "The Fight of the Century." I didn't like the outcome, nevertheless, . . . . .