We breathe, and eat, and sleep, and pay no heed to those processes; and indeed both physiologists and moralists exclaim, in the case of those natural processes, that the healthier we are the more unconscious will those processes be.
"So it should be with moral things.

If a grave obstruction or contradiction befall any one; if he behaves in a way that violates his usefulness, or his own or others' self-respect; then, if he will not reform himself, we must warn him, or treat him as a physician would: but to abuse a healthy nature for not considering the reasons of things, not having a moral system, not 'preparing for death,' when, by the very constitution of his nature, he does not require one, is a very grave blunder.

Moral anxiety is a sign of moral _malaise_, or, far more commonly, a sign of physical disorder.
"It is an ascertained fact that those periods when morals have been imposed on man as his sole and proper business and subject for contemplation have been unprogressive, introspective, feeble times.
"No, leave morals out of the question directly, unless you see there is grave cause for interference.

Give one or two plain warnings, or rather commands.
"Try to raise the _tone_ generally; try to make the young soul generous, ardent, aspiring.

If you can do that, the fouler things will fall off like husks.