74. Well, the first reason that I gave you these Loire drawings was this of their infallible decision; the second was their extreme modesty in color. They are, beyond all other works that I know existing, dependent for their effect on low, subdued tones; their favorite choice in time of day being either dawn or twilight, and even their brightest sunsets produced chiefly out of gray paper. This last, the loveliest of all, gives the warmth of a summer twilight with a tinge of color on the gray paper so slight that it may be a question with some of you whether any is there. And I must beg you to observe, and receive as a rule without any exception, that whether color be gay or sad the value of it depends never on violence, but always on subtlety. It may be that a great colorist will use his utmost force of color, as a singer his full power of voice; but, loud or low, the virtue is in both cases always in refinement, never in loudness. The west window of Chartres is bedropped with crimson deeper than blood; but it is as soft as it is deep, and as quiet as the light of dawn. 75. I say, "whether color be gay or sad." It must, remember, be one or the other. You know I told you that the pure Gothic school of color was entirety cheerful; that, as applied to landscape, it assumes that all nature is lovely, and may be clearly seen; that destruction and decay are accidents of our present state, never to be thought of seriously, and, above all things, never to be painted; but that whatever is orderly, healthy, radiant, fruitful and beautiful, is to be loved with all our hearts and painted with all our skill. 76. I told you also that no complete system of art for either natural history or landscape could be formed on this system; that the wrath of a wild beast, and the tossing of a mountain torrent are equally impossible to a painter of the purist school; that in higher fields of thought increasing knowledge means increasing sorrow, and every art which has complete sympathy with humanity must be chastened by the sight and oppressed by the memory of pain. But there is no reason why your system of study should be a complete one, if it be right and profitable though incomplete. If you can find it in your hearts to follow out only the Gothic thoughts of landscape, I deeply wish you would, and for many reasons.