Institutio Oratoria
Quintilian
Quintilian. Institutio Oratoria, Volume 1-4. Butler, Harold Edgeworth, translator. Cambridge, Mass; London: Harvard University Press, William Heinemann Ltd., 1920-1922.
Do we not use them to demand, promise, summon, dismiss, threaten, supplicate, express aversion or fear, question or deny? Do we not employ them to indicate joy,
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sorrow, hesitation, confession, penitence, measure, quantity, number and time? Have they not power to excite and prohibit, to express approval, wonder or shame? Do they not take the place of adverbs and pronouns when we point at places and things? In fact, though the peoples and nations of the earth speak a multitude of tongues, they share in common the universal language of the hands.