The book of God commands us to "be temperate in all things." The observance of this duty gives us a firm constitution, robust health, and prepares us to participate in all the innocent and rational enjoyments of life. Here we may witness the goodness of the Divine Being in uniting our duty, happiness and interest in one; and so firmly are they wedded together, and so absolutely does each depend upon the other that they cannot exist alone. They are alike laid in ruins the moment they are separated. If we trace this idea still further, we witness the same wise arrangement, and the same incomprehensible skill and goodness of the Author of our being in the constitution of our mental natures. In these also he has wholly united our duty, happiness and longevity in one. Jesus says, "Love your enemies; bless them that curse you, do good to them that hate you, and pray for them that despitefully use you, and persecute you, that ye may be the children of your Father in heaven." Paul says--"Let all bitterness and wrath and anger and clamor and evil speaking be put away from you, with all malice, and be ye kind one to another, tender hearted, forgiving one another even as God for Christ's sake hath forgiven you." Here then is our duty plainly pointed out. If we will exercise this spirit of benignity to our enemies, subdue all our revengeful passions, and indulge a spirit of love and friendship, of meekness and cheerfulness towards our friends and neighbors, we shall not only be happy as our natures can bear, not only revel in all the rational enjoyments this life can impart, but we shall in the common course of providence live to old age. All those, with very few exceptions, who have lived to 80, 90, and 100 years, have been remarked for their equanimity. They were mild spirited, kind, cheerful, and of such a temperament, that neither misfortune, nor any outward circumstances, that agitated the world, could disturb their heaven-born repose. Thus we see that the path of duty, enjoined in the sacred scriptures, is not only the path of peace and joy, but conducts to a good old age. The goodness of the Divine Being is most strikingly exemplified in uniting health and temperance, happiness and longevity, and our duty to our fellow creatures, all in one.