Institutio Oratoria
Quintilian
Quintilian. Institutio Oratoria, Volume 1-4. Butler, Harold Edgeworth, translator. Cambridge, Mass; London: Harvard University Press, William Heinemann Ltd., 1920-1922.
I am however haunted by the thought that some readers will regard what I have said as trivial details which are only likely to prove a hindrance to those who are intent upon a greater task; and I myself do not think that we should go so far as to lose our sleep of nights or quibble like fools over such minutiae; for such studies make mincemeat of the mind. But it is only the superfluities of grammar that do any harm.