Sarah was intelligent, but her real intelligence belonged to a rare kind; one that would certainly pass undetected in any of our modern tests of the faculty. It was not in the least analytical or problem-solving, and it is no doubt symptomatic that the one subject that had cost her agonies to master was mathematics. Nor did it manifest itself in the form of any particular vivacity or wit, even in her happier days. It was rather an uncanny—uncanny in one who had never been to London, never mixed in the world—ability to classify other people’s worth: to understand them, in the fullest sense of that word.
She had some sort of psychological equivalent of the experiences horse-dealer’s skill—the ability to know almost at the first glance the good horse from the bad one; or as if, jumping a century, she was born with a computer in her heart. I say her heart, since the values she computed belong more there than in the mind. She could sense the pretensions of a hollow argument, a false scholarship, a biased logic when she came across them; but she also saw through people in subtler ways. Without being able to say how, any more than a computer can explain its own processes, she saw them as they were and not as they tried to seem. It would not be enough to say she was a fine moral judge of people. Her comprehension was broader than that, and if mere morality had been her touchstone she would not have behaved as she did—the simple fact of the matter being that she had not lodged with a female cousin at Weymouth.
