C.T. Studd, missionary to the Congo, presented this parable:
"Remember the miller's donkey . . . the miller, his son and donkey went to the market. The miller rode the donkey all the way and people exclaimed, 'Cruel man, riding himself and making his son walk.' So he got down and his son rode; then people slanged, 'What a lazy son for riding while his poor old father walks.' Then both father and son rode, and people then said, 'Cruelty to animals, poor donkey.' So they got down and carried the donkey on a pole, but folks said, 'Here are two asses carrying another ass.' Then all three walked and people said, 'What fools to have a donkey and not ride it.' So let's go ahead with our work for God and not care what folks say."
That's why he ended up saying, "Had I cared for the comments of people, I should never have been a missionary."