1) With children, you must mix gentleness with firmness; they must not always have their own way, but they must not always be thwarted. Give to a pig when it grunts, and to a child when it cries, and you will have a fine pig and a spoiled child.
2) A man who is learning to play on a trumpet and a petted child are two very disagreeable companions even as next-door neighbors; but unless we look well to it, our children will be a nuisance to others and a torment to ourselves.
3) “The rod and reproof give wisdom: but a child left to himself bringeth his mother to shame.” If we never have headaches through rebuking our little children, we shall have plenty of heartaches when they grow up.
4) Strict truthfulness must rule all our dealings with the young; our yea must be yea, and our nay be nay,” and that always. Never promise a child and then fail to perform whether you promise him a bun or a beating.
5) Be obeyed at all costs—disobedient children are unhappy children; for their own sakes, make them mind you. If you yield up your authority once, you will hardly ever get it again, for he who says A must say B. and so on.
6) We must not provoke our children to anger, lest they be discouraged; but we must rule our household in the fear of the Lord, and in so doing we may expect a blessing.
– Charles Spurgeon