Most of the ancient and Renaissance masters he admired didn't feel the same way. It sometimes takes ugly effort to make beautiful things. People who love great things but are ignorant of how they're made are mystified by how dirty they have to get their own hands to make anything at all: they think the mess means they're doing something wrong, when mostly it just means they're finally doing real work. This isn't to say you should deliberately create mess and chaos (that'd be silly), but to fear it as a sure sign of error shows ignorance and nothing more.

