Inuring children gently to suffer some degrees of pain without shrinking, is a way to gain firmness to their minds, and lay a foundation for courage and resolution in the future part of their lives.

Since the great foundation of fear is pain, the way to harden and fortify children against fear and danger is to accustom them to suffer pain. This 'tis possible will be thought, by kind parents, a very unnatural thing towards their children; and by most, unreasonable...

But since the great foundation of fear in children is pain, the way to harden and fortify children against fear and danger is to accustom them to suffer pain.

Encourage your kids' artistic side. Toughen up everything else.

The next thing is by gentle degrees to accustom children to those things they are too much afraid of. But here great caution is to be used, that you do not make too much haste, nor attempt this cure too early, for fear lest you increase the mischief instead of remedying it.

To take good care of ourselves, we must go back and take care of the wounded child inside of us. You have to practice going back to your wounded child every day. You have to embrace him or her terderly, like a big brother or a big sister. You have to talk to him, talk to her. And you can write a letter to the Little child in you, of two or three pages, to that you recognize his or her presence, and will do everything you can to heal his or her wounds.

Harshness is for the good of a boy, soft-heartedness will ruin him.

You've got to learn to let go and let your children fall, and fail. If you try to protect them from hurt, and always rush to their side with Band-Aids, they won't learn about life, and what is true, what works, what helps, and what are real consequences of certain kinds of behavior. When they do get hurt, which they will, they won't know how to take care of their grown selves. They won't even know where the aspirin is kept.

Reconcile those who are at strife, prevent lawsuits; incline children to duty, fathers to kindness; promote happy marriages; prevent annoyances; freely use the credit of your pupil’s parents on behalf of the weak who cannot obtain justice, the weak who are oppressed by the strong. Be just, human, kindly.

Children, because of their helplessness, evoke our tenderness. But we must give them more than that: a vigilant sense of responsibility, an exquisite equilibrium between the extremes of exercising our authority and respecting their freedom. There is no greater satisfaction than a child who, when grown and at the age of accountability, is able to forgive us.

"(...) - So you mean that even having the power to interfere and prevent your child
feel pain, you would choose to show their love letting him learn his
own lessons?
- Sure, pain is part of growing up. It's how we learn.
The camerlegno shook his head.
- Exactly. "

p.89

The child who has been taught to realise the claims that God's lower creatures have upon him, whose heart has been touched by lessons of kindness and mercy, under their sweet influence will grow to be a large-hearted, tender-hearted, manly man. Then let the children be trained, their hands, their intellects, and above all their hearts. Let them be taught to have pity for the animals that are at our mercy, that cannot protect themselves, that cannot explain their weakness, their pain, or their suffering, and soon this will bring to their recognition that higher law, the moral obligation of man as a superior being to protect and care for the weak and defenceless. Nor will it stop here, for this in turn will lead them to that highest law—man's duty to man.

Children should not be suffer'd to lose the consideration of human nature in the shufflings of outward conditions. The more they have, the better humor'd they should be taught to be, and the more compassionate and gentle to those of their brethren who are placed lower, and have scantier portions. If they are suffer'd from their cradles to treat men ill and rudely, because, by their father's title, they think they have a little power over them, at best it is ill-bred; and if care be not taken, will by degrees nurse up their natural pride into an habitual contempt of those beneath them. And where will that probably end but in oppression and cruelty?

The hearts of small children are delicate organs. A cruel beginning in this world can twist them into curious shapes. The heart of a hurt child can shrink so that forever afterward it is hard and pitted as the seed of a peach. Or again, the heart of such a child may fester and swell until it is a misery to carry within the body, easily chafed and hurt by the most ordinary things.