Mankind's Ability to Be Trained

From German philosopher Arthur Schopenhauer:

Man excels all the animals even in his ability to be trained. Moslems are trained to turn their faces towards Mecca five times a day & pray: they do so steadfastly. Christians are trained to cross themselves on certain occasions, to genuflect, &c; while religion in general constitutes the real masterpiece in the art of training, namely the training of the mental capacities -- which, as it is well known, cannot be started too early. 

There is no absurdity so palpable that one could not fix it firmly in the head of every man on earth provided one began to imprint it before his sixth year by ceaselessly rehearsing it before him with solemn earnestness. For the training of men, as of animals, can be completely successful only in early youth.

Made me think of these sort of things:

& how important it is for advertisers to hook em young.