However perfect a style of art may be, its productions are not all perfect nor all of equal merit; while every human art has had its period of rise, culmination, and decline; and, enthusiastic and heart-stirring as must be our feelings towards any art in which we hope to excel, and intense as may be our veneration for the skill and noble sentiment of its original masters, these feelings should in no degree be permitted to blunt the sensitiveness of our own instinctive perception of beauty, whether positive or relative, nor to bias the freedom of our judgment as in the comparative truthfulness, propriety, or genuineness of the works of different periods or of different hands. We must keep a constant balance between our zeal and our judgment--not repressing the exercise of either, but giving each its full play, and exercising each in its highest and noblest degree. I now come to the _manner_ in which Mediæval architecture should be studied. In the first place, though books and prints are very useful in their degree, let me impress upon you, in the strongest manner, that all real study should be at the fountain head. You may derive information as to the history of art from books, but knowledge of art itself must be derived from works of art. The knowledge derived from books and prints comes to you at second hand--you are seeing through other men’s eyes; the really useful information is that which you obtain at the first hand, and through your own eyes. If you learn a fact from a book, be never satisfied till you have proved it by your own observation; if you are impressed with the beauty of a building from a drawing or a print, make sure of its being really beautiful by examining it for yourselves. Investigate every theory, however rudimental, by actual examination of the _data_ on which it is founded, so that none of your knowledge shall be merely taken upon trust from others. During a genuine and natural state of art, every one learned it from, and developed it upon, the works of his immediate predecessors. This natural course having been broken up, the most reasonable substitute for it is to study the actual works which surround us, and which were produced while art was still genuine and unbroken. We have not to visit distant shores, and to investigate obscure fragments,--the works of races which have vanished from the face of the earth: we are surrounded on every side by original examples of the arts which we would study; they are the productions of our own country and our own race. The temples from which our authorities are derived are not those of an ancient and bygone nation, but those in which we ourselves worship, and within and around whose hallowed walls sleep the remains of our own forefathers. We study no outlandish or exotic architecture, but that of buildings which from our infancy we have been taught to venerate. We have, then, no excuse if we neglect to obtain our knowledge from the fountain head.