The function of the painter is to render... the visible surface so that at a certain distance... and position it appears... like the body itself.

As ability goes, so goes our fortune.

I will never tire of recommending the custom, practiced by the best architects, of preparing not only drawings and sketches, but also models of wood or any other material. These... enable us to examine... the work as a whole... and, before continuing any further, to estimate the likely trouble and expense.

A common error of ignorance is to maintain that what one does not know does not exist.

The Arts are learnt by reason and method; they are mastered by practice.

Errors accumulate in the sketch and compound in the model.

Beauty is the adjustment of all parts proportionately so that one cannot add or subtract or change without impairing the harmony of the whole.