Though we are all Christians together, we are all different, and the problems and the difficulties, the perplexities and the trials that we are likely to meet are in a large measure determined by the difference of temperament and of type. We are all in the same fight, of course, as we share the same common salvation, and have the same common central need. But the manifestations of the trouble vary from case to case and from person to person. There is nothing more futile, when dealing with [a] condition, than to act on the assumption that all Christians are identical in every respect. They are not, and they are not even meant to be.