We must never assume that which is incapable of proof. - George Henry Lewes

In Science the paramount appeal is to the Intellect — its purpose being instruction; in Art, the paramount appeal is to the Emotions — its purpose being pleasure. A work of Art must of course indirectly appeal to the Intellect, and a work of Science will also indirectly appeal to the Feelings; nevertheless a poem on the stars and a treatise on astronomy have distinct aims and distinct methods. But having recognised the broadly-marked differences, we are called upon to ascertain the underlying resemblances. Logic and Imagination belong equally to both. It is only because men have been attracted by the differences that they have overlooked the not less important affinities.

Our native susceptibilities and acquired tastes determine which of the many qualities in an object shall most impress us, and be most clearly recalled. One man remembers the combustible properties of a substance, which to another is memorable for its polarising property; to one man a stream is so much water-power, to another a rendezveus for lovers.

No man really thinks and feels monotonously. If he is monotonous in his manner of setting forth his thoughts and feelings, that is either because he has not learned the art of writing, or because he is more or less consciously imitating the manner of others. The subtle play of thought will give movement and life to his style if he do not clog it with critical superstitions. I do not say that it will give him grace and power; I do not say that relying on perfect sincerity will make him a fine writer, because sincerity will not give talent; but I say that sincerity will give him all the power that is possible to him, and will secure him the inestimable excellence of Variety.