For as the interposition of a rivulet, however small, will occasion the line of the phalanx to fluctuate, so any trifling disagreement will be the cause of seditions . . .
Source: Politics, bk. 5, ch. 3, sct. 1303b.
-- Aristotle, ( 384BC-322BC), Greek writer, philosopher; He is credited with inventing logic and the science of reasoning.