Art, to me is the interpretation of the impression which nature makes upon the eye and brain. The word 'Impressionism' as applied to art has been abused, and in the general acceptance of the term has become perverted. [...] The true impressionism is realism. So many people do not observe. They take the ready-made axioms laid down by others, and walk blindly in a rut without trying to see for themselves.

Childe Hassam: American impressionist (ed. Te Neues Pub Group, 1994)