We have now to consider rural architecture under the guidance of the third leading principle, as an art of taste. The expression of architectural style in buildings is undoubtedly a matter of the first importance, and proper care being taken not to violate fitness and expression of purpose, it may be considered as appealing most powerfully, at once, to the mind of almost every person. Indeed, with many, it is the only species of beauty which they perceive in buildings, and to it both convenience and the expression of purpose are often ignorantly sacrificed.