The interference of qualities that lie outside of passion is shown very curiously and remarkably in intellectual persons in this way. They may have a strong temporary passion for somebody without intellect or culture, but they are not likely to be held permanently by such a person; and even when under the influence of the temporary desire they may be clearly aware of the danger there would be in converting it into a permanent relation, and so they may take counsel with themselves and subdue the passion or fly from the temptation, knowing that it would be sweet to yield, but that a transient delight would be paid for by years of weariness in the future. Those men of superior abilities who have bound themselves for life to some woman who could not possibly understand them, have generally either broken their bonds afterwards or else avoided as much as possible the tiresomeness of a _tête-à-tête_, and found in general society the means of occasionally enduring the dulness of their home. For short and transient relations the principal charm in a woman is either beauty or a certain sweetness, but for any permanent relation the first necessity of all is that she be companionable. Passionate love is the principal subject of poets and novelists, who usually avoid its greatest difficulties by well-known means of escape. Either the passion finishes tragically by the death of one of the parties, or else it comes to a natural culmination in their union, whether according to social order or through a breach of it. In real life the story is not always rounded off so conveniently. It may happen, it probably often does happen, that a passion establishes itself where it has no possible chance of satisfaction, and where, instead of being cut short by death, it persists through a considerable part of life and embitters it. These cases are the more unfortunate that hopeless desire gives an imaginary glory to its own object, and that, from the circumstances of the case, this halo is not dissipated.