There are two causes of beauty-natural and customary. Natural is from geometry
consisting in uniformity, that is equality and proportion. Customary beauty is
begotten by the use, as familiarity breeds a love for things not in themselves lovely.
Here lies the great occasion of errors, but always the true test is natural or
geometrical beauty. Geometrical figures are naturally more beautiful than irregular
ones: the square, the circle are the most beautiful, next the parallelogram and
the oval. There are only two beautiful positions of straight lines, perpendicular
and horizontal; this is from Nature and consequently necessity, no other than
upright being firm.
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