An architect and critic elaborates on what most of us see when we look at much of modern architecture: buildings that are lifeless and just plain ugly. Hale laments the current state of architecture and the loss of ""harmonious design,"" an art that involves play and intuition. ""A great building can give us the same exhilaration we experience in a natural landscape,"" he writes. He urges architects and designers to rediscover the beauties of natural law and geometry, to abandon the fragmentation he sees as characteristic of postmodern architecture. He offers a historical summary of how building strayed, in the middle of the 19th century coincident with the Industrial Revolution, from the intuitive verities of harmony and balance, forsaking meaningful patterns for crude symbolism or somber functionality. Photos.