Principle is a passion for truth.

There is nothing so remote from vanity as true genius. It is almost as natural for those who are endowed with the highest powers of the human mind to produce the miracles of art, as for other men to breathe or move. Correggio, who is said to have produced some of his divinest works almost without having seen a picture, probably did not know that he had done anything extraordinary.

The severest critics are always those who have either never attempted, or who have failed in original composition.

Wonder at the first sight of works of art may be the effect of ignorance and novelty; but real admiration and permanent delight in them are the growth of taste and knowledge.

Prejudice is never easy unless it can pass itself off for reason.

No man can thoroughly master more than one art or science.

Grace has been defined as the outward expression of the inward harmony of the soul.