Susanna Wesley’s childrearing advice (she was also the 25th child in a family of 25 children):
In order to form the minds of children, the first thing to be done is to conquer their will and bring them to an obedient temper. To inform the understanding is a work of time and must with children proceed by slow degrees as they are able to bear it: but the subjecting the will is a thing which must be done at once; and the sooner the better. For by neglecting timely correction, they will contract a stubbornness and obstinacy which is hardly ever after conquered; and never, without using such severity as would be as painful to me as to the child. In the esteem of the world they pass for kind and indulgent, whom I call cruel, parents, who permit their children to get habits which they know must be afterward broken. Nay, some are so stupidly fond as in sport to teach their children to do things which, in a while after, they have severely beaten them for doing.
Whenever a child is corrected, it must be conquered; and this will be no hard matter to do if it be not grown headstrong by too much indulgence. And when the will of a child is totally subdued and it is brought to revere and stand in awe of the parents, then a great many childish follies and inadvertences style may be passed by. Some should be overlooked and taken no notice of, and others mildly reproved; but no willful transgression ought ever to be forgiven children without chastisement, less or more, as the nature and circumstances of the offense require.
I insist upon conquering the will of children betimes, because this is the only strong and rational foundation of a religious education; without which both precept and example will be ineffectual. But when this is thoroughly done, then a child is capable of being governed by the reason and piety of its parents, till its own understanding comes to maturity and the principles of religion have taken root in the mind.
I cannot yet dismiss this subject. As self-will is the root of all sin and misery, so whatever cherishes this in children insures their after-wretchedness and irreligion; whatever checks and mortifies it promotes their future happiness and piety. This is still more evident if we further consider that religion is nothing else than the doing the will of God and not our own: that the one grand impediment to our temporal and eternal happiness being this self-will, no indulgencies of it can be trivial, no denial unprofitable. Heaven or hell depends on this alone. So that the parent who studies to subdue it in his child works together with God in the renewing and saving a soul. The parent who indulges it does the devil’s work, makes religion impracticable, salvation unattainable; and does all that in him lies to damn his child, soul and body forever.