“The optimist is a better reformer than the pessimist; and the man who believes life to be excellent is the man who alters it most. It seems a paradox, yet the reason of it is very plain. The pessimist can be enraged at evil. But only the optimist can be surprised at it. From the reformer is required a simplicity of surprise. He must have the faculty of a violent and virgin astonishment.”G. K. Chesterton, from this book, found here
There is a lesson here for Christian leaders, not only those with apostolic and evangelistic ministries, but for those who serve humbly within the existing established institutions.