Painting is a science, and should be pursued as an inquiry into the laws of nature. Why, then, may not landscape painting be considered as a branch of natural philosophy, of which pictures are but the experiments?
John ConstableA sketch will not serve more than one state of mind & will not serve to drink at again & again — in a sketch there is nothing but the one state of mind — that which you were in at the time.
John ConstableIt will be difficult to name a class of landscape in which the sky is not the key note, the standard of scale, and the chief organ of sentiment.
John Constable