A horse who is docile and prompt to obey can be guided hither and thither by the slightest movement of the reins. Very few men are led by their own reason: those who come next to the best are those who return to the right path in consequence of advice; and these we must not deprive of their guide. When our eyes are covered they still possess sight; but it is the light of day which, when admitted to them, summons them to perform their duty: tools lie idle, unless the workman uses them to take part in his work. Similarly men’s minds contain a good feeling, which, however, lies torpid, either through luxury and disuse, or through ignorance of its duties. This we ought to render useful, and not to get into a passion with it, and leave it in its wrong doing, but bear with it patiently, just as schoolmasters bear patiently with the blunders of forgetful scholars; for as by the prompting of a word or two their memory is often recalled to the text of the speech which they have to repeat, so men’s goodwill can be brought to return kindness by reminding them of it.