You shall find, that there cannot be a greater spur to the attaining what you would have the eldest learn, and know himself, than to set him upon teaching it his younger brothers and sisters.
John LockeBeating is the worst, and therefore the last means to be us'd in the correction of children, and that only in the cases of extremity, after all gently ways have been try'd, and proved unsuccessful; which, if well observ'd, there will very seldom be any need of blows.
John Locke