"Learning to love is a long lesson. It takes all of the longest life to learn it. The most inveterate obstacle in mastering the lesson is self, which persists with an energy which nothing but divine grace can overcome. When no longer we seek our own in any of our relations with others, we have learned to love. Until then we still need to stay in Christ's school." James Russell Miller was a popular Christian author, Editorial Superintendent of the Presbyterian Board of Publication, and pastor of several churches in Pennsylvania and Illinois. He was the General field Agent for the United States Christian Commission, an organization established by the Young Men's Christian Association after the First Battle of Bull Run. Miller authored nearly 100 books and articles.