As Mrs. Touchett had foretold, Isabel and Madame Merle were thrown much together during the illness of their host, so that if they had not become intimate it would have been almost a breach of good manners. Their manners were of the best, but in addition to this they happened to please each other. It is perhaps too much to say that they swore an eternal friendship, but tacitly at least they called the future to witness. Isabel did so with a perfectly good conscience, though she would have hesitated to admit she was intimate with her new friend in the high sense she privately attached to this term. She often wondered indeed if she ever had been, or ever could be, intimate with any one.
She had an ideal of friendship as well as of several other sentiments, which it failed to seem to her in this case--it had not seemed to her in other cases--that the actual completely expressed. But she often reminded herself that there were essential reasons why one's ideal could never become concrete. It was a thing to believe in, not to see--a matter of faith, not of experience. Experience, however, might supply us with very creditable imitations of it, and the part of wisdom was to make the best of these. Certainly, on the whole, Isabel had never encountered a more agreeable and interesting figure than Madame Merle; she had never met a person having less of that fault which is the principal obstacle to friendship--the air of reproducing the more tiresome, the stale, the too-familiar parts of one's own character. The gates of the girl's confidence were opened wider than they had ever been; she said things to this amiable auditress that she had not yet said to any one. Sometimes she took alarm at her candour: it was as if she had given to a comparative stranger the key to her cabinet of jewels.
These spiritual gems were the only ones of any magnitude that Isabel possessed, but there was all the greater reason for their being carefully guarded. Afterwards, however, she always remembered that one should never regret a generous error and that if Madame Merle had not the merits she attributed to her, so much the worse for Madame Merle. There was no doubt she had great merits--she was charming, sympathetic, intelligent, cultivated. More than this (for it had not been Isabel's ill-fortune to go through life without meeting in her own sex several persons of whom no less could fairly be said), she was rare, superior and preeminent. There are many amiable people in the world, and Madame Merle was far from being vulgarly good-natured and restlessly witty. She knew how to think--an accomplishment rare in women; and she had thought to very good purpose.