Man does not live for himself alone in this mortal body, in order to work on its account, but also for all men on earth; nay, he lives only for others, and not for himself. For it is to this end that he brings his own body into subjection, that he may be able to serve others more sincerely and more freely... Thus it is impossible that he should take his ease in this life, and not work for the good of his neighbors, since he must needs speak, act, and converse among men, just as Christ... had His conversation among men... It is the part of a Christian to take care of his own body for the very purpose that by its soundness and wellbeing he may be enabled to labor... for the aid of those who are in want, that thus the stronger member may serve the weaker member, and we may be children of God, and busy for one another, bearing one another's burdens, and so fulfilling the law of Christ.