Institutio Oratoria
Quintilian
Quintilian. Institutio Oratoria, Volume 1-4. Butler, Harold Edgeworth, translator. Cambridge, Mass; London: Harvard University Press, William Heinemann Ltd., 1920-1922.
The following short gestures are also employed: the hand may be slightly hollowed as it is when persons are making a vow, and then moved slightly to and fro, the shoulders swaying gently in unison: this is adapted to passages where we speak with restraint and almost with timidity. Wonder is best expressed as follows: the hand turns slightly upwards and the fingers are brought in to the palm, one after the other, beginning with the little finger; the hand is then opened and turned round by a reversal of this motion.
There are various methods of expressing interrogation; but, as a rule, we do so by a turn of the hand, the arrangement of the fingers being indifferent. If the first finger touch the middle of the right-hand edge of the thumb-nail with its extremity, the other fingers being relaxed, we shall have a graceful gesture well suited to express approval or to accompany statements of facts, and to mark the distinction between our different points.
There is another gesture not unlike
Again, there is the somewhat unusual gesture in which the hand is hollowed and raised well above the shoulder with a motion suggestive of exhortation. The tremulous motion now generally adopted by foreign schools is, however, fit only for the stage. I do not know why some persons disapprove of the movement of the fingers, with their tops converging, towards the mouth. For we do this when we are slightly surprised, and at times also employ it to express fear or entreaty when we are seized with sudden indignation.