For a man who is sensitive to nature, happiness consists in expressing nature. How infinitely happy, then, is the man who reflects nature like a mirror without being aware of it, who does the thing for love of it and not from any pretensions to take first place. This noble unself-consciousness is what we find in all truly great men, in the founders of the arts. I picture the great Poussin, in his retreat, delighting in the study of the human heart.... I picture Raphael in the arms of his mistress, turning from La Fornarina to paint his Saint Cecilia.... I am only too well aware that I am far not only from their divine spirit, but even from their modest simplicity...