This gentleman was quite deaf, and like all deaf persons spoke in a very low tone of voice; in fact, he could not be heard six feet away from him; but he had, no doubt adopted Demosthenes' idea that gestures were the levers of eloquence; and his arms would go up and down and to the right and to the left, and his eyes sometimes rolled upward and then downward to the floor.
"Memoirs of Orange Jacobs"
Orange Jacobs
He sat back of a tremendous desk-behind his chair was a tilted panel of dials, levers and tiny glowing lights, running the length of the room under the ceiling-high window.
"The Instant of Now"
Irving E. Cox, Jr.
In fact, the habit of finding in the good tendencies of the child the levers with which to move him to the repression of his bad impulses has placed in the hands of the professional teacher the means of governing the child without appeal to force except in the rarest cases.
"Dickens As an Educator"
James L. (James Laughlin) Hughes