chapter I allude to, is that entitled, 'Case of spiritual decay and languor in religion.' There is a following one on 'Case of a relapse into known sin,' and I trust you have a pretty good edition of this super-excellent book. "I have a word to say on another topic--that, I mean, of purity--the necessity of most scrupulous guarding against the very first commencement or even against the appearance of evil is in no instance so just and so important as in the case of all sins of this class. Many a man who would have been restrained from the commission of sins of this class by motives of worldly prudence or considerations of humanity, has been hurried into sin by not attending to this warning. I myself remember an instance of this kind in two people, both of whom I knew. And as Paley truly remarks that there is no class of vices which so depraves the character as illicit intercourse with the female sex, so he likewise mentions it as a striking proof of the superior excellence of Christ's moral precepts, that in the case of chastity and purity it lays the restraint on the _heart_ and on the _thoughts_ as the only way of providing against the grossest acts of disobedience. Oh, my dear Samuel, guard here with especial care, and may God protect and keep you. Indeed, I trust He will, and it is with exceeding pleasure that I think of you, and humbly and hopefully look forward on your advancing course in life. I did not intend saying half so much, but when I enter into conversation with my Samuel I know not how to stop. 'With thee conversing I forget all course of seasons and their change.'" "_October 26, 1822._ "I cannot to-day send you the account of _time_, but I will transmit it to you. It was a very simple business, and the chief object was to take precautions against the disposition to waste time at breakfast and other _rendezvous_, which I have found in myself when with agreeable companions, and to prove to myself by the decisive test of figures that I was not working so hard as I should have supposed from a general survey of my day. The grand point is to maintain an habitual sense of responsibility and to practise self-examination daily as to the past and the future day." "_March 17, 1822._ "No man has perhaps more cause for gratitude to God than myself. But of all the various instances of His goodness, the greatest of all, excepting only His Heavenly Grace, is the many kind friends with whom a Gracious Providence has blessed me. Oh remember, my dearest boy, to form friendships with those only who love and serve God, and when once you have formed them, then preserve them as the most valuable of all possessions. "One of my chief motives now for paying visits is to cultivate the friendship of worthy people who, I trust, will be kind to my dearest children when I am no more. I hope you and the rest will never act so as to be unworthy of the connections I have formed." "_November 22, 1822._