Courtesy and Determination

Commenting on Galatians 2:1-10, William Barclay writes of Paul:

He was a man who gave authority its due respect. He did not go his own way. He went and talked with the leaders of the Church however much he might differ from them. It is a great and neglected law of life that however right we happen to be there is nothing to be gained by rudeness. There is never any reason why courtesy and determination should not go hand in hand.