Quotes from Carl Purcell

Drawings are the product of intense observation, not intellectual interpretation.

It's odd that in our culture we assume that everyone can (and should) learn basic language skills although only a small percentage will become authors. We also assume that everyone can learn math while only a few will become mathematicians. However, we assume that drawing requires some special talent possessed by only a few and the rest need not try.

Questions like, "How close is the angle of this object to vertical?" "Are any of the subject's dimensions the same?" "Where is this in relation to that?