Man is a born geometer. Even when he is expressing himself in curves, as he has done in the undulating roofs of Eastern Asia and in the flowing sculptures at Borobudur, his lines follow mathematical laws that are unknown to Nature; and he is frankly defying her when he works in rectangles. Angkor is perhaps the greatest of Man's essays in rectangular architecture that has yet been brought to light... The Buddhist stupa at Borobudur in Central Java is a lyric poem in stone, flowing round the crown of a hill to the musical accompaniment of a jagged mountain range on one side and a green expanse of rice fields on the other. Angkor is not orchestral; it is monumental. It is an epic poem which makes its effect, like the Odyssey and like Paradise Lost, by the grandeur of its structure as well as by the beauty of the details. Angkor is an epic in rectangular forms imposed upon the Cambodian jungle.