If there is something he should not do, do not forbid him, but prevent him without explanation or reasoning… — Jean Jacques Rousseau
If there is something he should not do, do not forbid him, but prevent him without explanation or reasoning; what you give him, give it at his first word without prayers or entreaties, above all without conditions. Give willingly, refuse unwillingly, but let your refusal be irrevocable; let no entreaties move you; let your "No," once uttered, be a wall of brass, against which the child may exhaust his strength some five or six times, but in the end he will try no more to overthrow it.
Thus you will make him patient, equable, calm, and resigned, even when he does not get all he wants; for it is in man's nature to bear patiently with the nature of things, but not with the ill-will of another. A child never rebels against, "There is none left," unless he thinks the reply is false. Moreover, there is no middle course; you must either make no demands on him at all, or else you must fashion him to perfect obedience. The worst education of all is to leave him hesitating between his own will and yours, constantly disputing whether you or he is master; I would rather a hundred times that he were master.
Source: Wikiquote · CC BY-SA 4.0
More from this book
Where is the man who owes nothing to the land in which he lives? Whatever that land may be, he owes to it the most precious thing possessed by man, the morality of his actions and the love of virtue.
Gluttony is the vice of feeble minds. The gourmand has his brains in his palate, he can do nothing but eat; he is so stupid and incapable that the table is the only place for him, and dishes are the only things he knows anything about. Let us leave him to this business without regret; it is better for him and for us.
Nature never deceives us; it is always we who deceive ourselves.

