"One is often in a state of mind and nerves which indisposes for the effort of active conversation; one wishes to rest, to observe, to be amused without an effort; and a mansion which opens wide its hospitable arms, and offers itself to you as a sort of home, where you may rest, and do just as the humor suits you, is a perfect godsend at such times. You are at home there, your ways are understood, you can do as you please,--come early or late, be brilliant or dull,--you are always welcome. If you can do nothing for the social whole to-night, it matters not. There are many more nights to come in the future, and you are entertained on trust, without a challenge. "I have one friend,--a man of genius, subject to the ebbs and flows of animal spirits which attend that organization. Of general society he has a nervous horror. A regular dinner or evening party is to him a terror, an impossibility; but there is a quiet parlor where stands a much-worn old sofa, and it is his delight to enter without knocking, and be found lying with half-shut eyes on this friendly couch, while the family life goes on around him without a question. Nobody is to mind him, to tease him with inquiries or salutations. If he will, he breaks into the stream of conversation, and sometimes, rousing up from one of these dreamy trances, finds himself, ere he or they know how, in the mood for free and friendly talk. People often wonder, 'How do you catch So-and-so? He is so shy! I have invited and invited, and he never comes.' We never invite, and he comes. We take no note of his coming or his going; we do not startle his entrance with acclamation, nor clog his departure with expostulation; it is fully understood that with us he shall do just as he chooses; and so he chooses to do much that we like.