“It is a curious truth — and yet a truth forced upon us by daily observation — that it is not the women who have suffered most who are the unhappy women. A state of permanent unhappiness — not the morbid, half-cherished melancholy of youth, which generally wears off with wiser years, but that settled, incurable discontent and dissatisfaction with all things and all people, which we see in some women, is, with very rare exceptions, at once the index and the exponent of a thoroughly selfish character.”