Even the manner in which something is presented and the tone in which particular details are emphasized cannot have the same effect in those two strata that belong respectively to the opposite extremes of the social structure. If the propaganda should refrain from using primitive forms of expression it will not appeal to the sentiments of the masses. If, on the other hand, it conforms to the crude sentiments of the masses in its words and gestures the intellectual circles will be averse to it because of its roughness and vulgarity. Among a hundred men who call themselves orators there are scarcely ten who are capable of speaking with effect before an audience of street-sweepers, locksmiths and navvies, etc., to-day and expound the same subject with equal effect to-morrow before an audience of university professors and students.