The artist, clearly, can render only what his tool and his medium are capable of rendering. His technique restricts his freedom of choice…. Sitting in front of his motif, pencil in hand, the artist will, therefore, look out for those aspects which can be rendered in lines…he will tend to see his motif in terms of lines, while, brush in hand, he sees it in terms of masses.
– Ernest Gombrich, The Essential Gombrich