"Creation of effective public opinion depends on the cultivation of true courage, born of truthfulness and nonviolence."

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The whole of education should be designed so as to occupy a boy's free time in cultivation of his body.  He has no right to loaf about idly; but after his day's work is done, he ought to harden his young body, so that life may not find him soft when he enters it.  No one should be allowed to sin at the expense of posterity, that is, of the race.

— Adolf Hitler