You will learn to paint trees only by understanding them, their growth, their nature, their movement - and realizing that they are conscious living things. A tree seldom if ever encroaches upon the liberty of another tree. It never wastes its growth in unnecessary twistings.
My brain has no heart, and my heart has no brain. That's why when I speak my mind, I appear heartless and when I do what's in my heart I seem thoughtless.