In most natural scenes there is a prevailing colour, which the landscape painter must learn to identify, and which must prevail also in a slightly exaggerated form, in his painting, for the sake of truth, harmony and unity.
Zeal is the great desire to make God known, loved, and served, and thus to bring knowledge of salvation to others. Activity flows from this virtue. Teachers who possess it fulfill the duties of their profession with enthusiasm, love, courage, and perseverance.