Institutio Oratoria

They will perhaps produce a long list of orators who are most effective in the courts but have never sat under a geometrician and whose understanding of music is confined to the pleasure which their ears, like those of other men, derive from it. To such critics I reply, and Cicero frequently makes the same remark in his Orator, that I am not describing any orator who actually exists or has existed, but have in my mind's eye an ideal orator, perfect down to the smallest detail.