To rebuke well is a gift which grows with the need of exercising it. Not that any one will gain it without an effort on his part; he must overcome false shame, timidity, and undue delicacy, and learn to be prompt and collected in withstanding evil; but after all, his mode of doing it will depend mainly on his general character. The more his habitual temper is formed after the law of Christ, the more discreet, unexceptionable, and graceful will be his censures, the more difficult to escape or to resist.
What I mean is this: cultivate in your general deportment a cheerful, honest, manly temper; and you will find fault well, because you will do so in a natural way. Aim at viewing all things in a plain and candid light, and at calling them by their right names. Be frank, do not keep your notions of right and wrong to yourselves, nor, on some conceit that the world is too bad to be taught the Truth, suffer it to sin in word or deed without rebuke. Do not allow friend or stranger in the familiar intercourse of society to advance false opinions, nor shrink from stating your own, and do this in singleness of mind and love. Persons are to be found, who tell their neighbours of their faults in a strangely solemn way, with a great parade, as if they were doing something extraordinary; and such men not only offend those whom they wish to set right, but also foster in themselves a spirit of self-complacency. Such a mode of finding fault is inseparably connected with a notion that they themselves are far better than the parties they blame; whereas the single-hearted Christian will find fault, not austerely or gloomily, but in love; not stiffly, but naturally, gently, and as a matter of course, just as he would tell his friend of some obstacle in his path which was likely to throw him down, but without any absurd feeling of superiority over him, because he was able to do so. His feeling is, "I have done a good office to you, and you must in turn serve me."