Shadow is a colour as light is, but less brilliant; light and shadow are only the relation of two tones.
It is not about painting life, it is about making painting alive.
The artist makes things concrete and gives them individuality.
When the color achieves richness, the form attains its fullness also.
Painting from nature is not copying the object; it is realizing one's sensations.
Pure drawing is an abstraction. Drawing and colour are not distinct, everything in nature is coloured.