"She was enchanted with the new world now exhibited to her, and she was not cool enough to distinguish the vivid glow of imagination from the colours of real bliss. The pleasure she now felt she believed would always be renewed, and in equal degree, by the objects which first excited it. The weakness of humanity is never willingly perceived by young minds. It is painful to know, that we are operated upon by objects whose impressions are variable as they are indefinable--and that what yesterday affected us strongly, is to-day but imperfectly felt, and to-morrow perhaps shall be disregarded. When at length this unwelcome truth is received into the mind, we at first reject with disgust every appearance of good, we disdain to partake of a happiness which we cannot always command, and we not unfrequently sink into a temporary despair. Wisdom or accident, at length, recal [sic] us from our error, and offers to us some object capable of producing a pleasing, yet lasting effect, which effect, therefore, we call happiness. Happiness has this essential difference from what is commonly called pleasure, that virtue forms its basis, and virtue being the offspring of reason, may be expected to produce uniformity of effect."
-Ann Radcliffe, A Sicilian Romance