Parents should encourage in their Children a lively chearful Disposition; but quite pure, and unmixt with Vice, however distant. In order thereto, they should never suffer them, for any consideration, to utter an indecent Word, or commit any irregular Action which has the least bad Tendency; but above all, Parents must be careful themselves, never to say or do any thing in their Presence that they ought not to hear or see. This Caution may seem unnecessary, since all acknowledge how great the Force of Example is; yet if we view the general Conduct of Fathers particularly, we shall be obliged to own they stand greatly in need of it. For what more common than to hear Men swear and utter many indecent Expressions before their Children? And what more natural than their Imitation of them? which Poison, when once imbibed, cannot easily be expelled. As my Aim in writing is purely the Hopes of conveying Instruction, so I speak my Thoughts with Freedom; and every one is at liberty to take or leave what they like, or what they find most necessary and applicable to themselves: still I cannot help urging in the strongest Terms, a strict Regard to Decency as an universal and indispensable Obligation. For whoever considers how naturally propense we are to catch the Taint, and how very hard it is to wipe it off, will surely agree with me, that those are much the happiest who escape the Infection the longest.
But besides the nicest Care with regard to Words, Parents, as I have observed before, should be greatly circumspect in their Actions. Nothing gross or indecent should be done in their Sight; a Mother should by no means appear too much undressed in the Presence of her Son; nor a Father in that of his Daughter; for these and many other things, though in themselves innocent, are not allowable; they give Boys a Boldness which borders on Impudence; and they are apt to wean Girls from some Degree of that Modesty they ought so carefully to preserve.
I cannot but recommend, what I doubt very few will comply with, that Boys and Girls, even when Infants, have not only separate Beds, but, wherever it is practicable, always lie in separate Rooms: nor should they ever be exposed naked to one another, or the least wanton Curiosity be permitted: the Eyes and Ears convey Corruption to the Mind; and we cannot begin too soon to shut up every Avenue to Vice. I am sensible of the Singularity of this Doctrine; but I am firmly persuaded many good Effects would flow from the Practice of it. It is Matter of Astonishment to me, to see discreet and good People universally over-run with the false Notion, that Children do not observe; as if because they are Children, they neither hear, nor see, nor feel: whence they often lead them, or suffer them to be led very early into some kinds of Knowledge, which should be the last for them to learn. I grant indeed that such is the general reigning Corruption, that however carefully Parents avoid tainting their Children’s Minds, they will still be exposed to the Contagion of others; but if they have the Happiness of seeing these things always discountenanced by their Parents, and are never suffered to copy the corrupt Manners of others, the odds are greatly in their Favour: but if after all they should still turn out vicious, Parents will have at least the consoling Reflection, that they did every thing on their Part to prevent it.