It is much easier to commence an affair of this kind than to break it off; and a man, though his heart was disengaged, should be always on his guard against any thing like an attachment where his affections are not really interested: meer passion or meer vanity will support an affair en passant; but, where the least degree of constancy and attention are expected, the heart must feel, or the lover is subjecting himself to a slavery as irksome as a marriage without inclination.