T. Roger Smith, Architecture: Gothic and Renaissance
“ To have an idea of the building as Michelangelo designed it, it is necessary to go round to the back; and then, with the height of the drum fully seen and the contour of the dome, with all its massy lines of living force, carrying the eye with them right up to the elegant lantern that crowns the summit, some conception of the hugeness and the symmetry of this mountain of art seems to dawn on the mind. But even here it is with the utmost difficulty that one can apply any scale to the mass, so that the idea which the mind forms of its bulk is continually fluctuating. ”
