Indiscriminate pursuit of perfection infallibly leads to mediocrity.
Heaven and earth, advantages and obstacles, conspire to educate genius.
Emulation embalms the dead; envy, the vampire, blasts the living.
Life is rapid, art is slow, occasion coy, practice fallacious, and judgment partial.
When we idealize the real, we sacrifice to artistic fancy.
Tintoretto attempted to fill the line of Michelangelo with color, without tracing its principle.