"After much discussion, the opinion of Buonarroti was requested.

He had conceived views widely differing on those of Sangallo and several others, and these he expressed frankly.

Whereupon Sangallo told him that sculpture and painting were his trade, not fortification.

He replied that about them he knew but little, whereas the anxious thought he had given to city defences, the time he had spent, and the experience he had practically gained in constructing them, made him superior in that art to Sangallo and all the masters of his family.

He proceeded to point out before all present numerous errors in the works.