“Observe perpetually!”

“Very often conditions are recorded as observable "under thy fingers" [...] Among such observations it is important to notice that the pulsations of the human heart are observed.”

“...It often seemed to her that she thought too much about herself, you could have made her blush any day of the year, by telling her she was selfish. She was always planning out her own development, desiring her own perfection, observing her own progress. Her nature had for her own imagination a certain garden-like quality, a suggestion of perfume and murmuring bows, of shady bowers and of lengthening vistas, which made her feel that introspection was, after all, an exercise in the open air, and that a visit to the recesses of one’s mind was harmless when one returned from it with a lapful of roses.”

“After this Daisy was never at home, and Winterbourne ceased to meet her at the houses of their common acquaintances, because, as he perceived, these shrewd people had quite made up their minds that she was going too far. They ceased to invite her, and they intimated that they desired to express observant Europeans the great truth that, though Miss Daisy Miller was a young American lady, her behaviour was not representative - was regarded by her compatriots as abnormal. Winterbourne wondered how she felt about all the cold shoulders that were turned towards her, and sometimes it annoyed him to suspect that she did not feel at all. He said to himself that she was too light and childish, too uncultivated and unreasoning, too provincial, to have reflected upon her ostracism or even to have perceived it. Then at other moments he believed that she carried about in her elegant and irresponsible little organism a defiant, passionate, perfectly observant consciousness of the impression she produced. He asked himself whether Daisy's defiance came from the consciousness of innocence or from her being, essentially, a young person of the reckless class. It must be admitted that holding oneself to a belief in Daisy's "innocence" came to see Winterbourne more and more a matter of fine-spun gallantry. As I have already had occasion to relate, he was angry at finding himself reduced to chopping logic about this young lady; he was vexed at his want of instinctive certitude as to how far her eccentricities were generic, national, and how far they were personal. From either view of them he had somehow missed her, and now it was too late.”

“[...] we have in our treatise a series of fifty-seven examinations, almost exclusively of injuries of the human body forming a group of observations furnishing us with the earliest known nucleus of fact regarding the anatomy, physiology and pathology of the human body. Crude and elementary as they are, the method by which they were collected was scientific, and these observations, together with the diagnoses and the explanatory commentary in the ancient glosses, form the oldest body of science now extant.”

“He had thought himself, so long as nobody knew, the most disinterested person in the world, carrying his concentrated burden, his perpetual suspense, ever so quietly, holding his tongue about it, giving others no glimpse of it nor of its effect upon his life, asking of them no allowance and only making on his side all those that were asked. He hadn't disturbed people with the queerness of their having to know a haunted man, though he had had moments of rather special temptation on hearing them say they were forsooth "unsettled." If they were as unsettled as he was—he who had never been settled for an hour in his life—they would know what it meant. Yet it wasn't, all the same, for him to make them, and he listened to them civilly enough. This was why he had such good—though possibly such rather colourless—manners; this was why, above all, he could regard himself, in a greedy world, as decently—as in fact perhaps even a little sublimely—unselfish. Our point is accordingly that he valued this character quite sufficiently to measure his present danger of letting it lapse, against which he promised himself to be much on his guard. He was quite ready, none the less, to be selfish just a little, since surely no more charming occasion for it had come to him. "Just a little," in a word, was just as much as Miss Bartram, taking one day with another, would let him. He never would be in the least coercive, and would keep well before him the lines on which consideration for her—the very highest—ought to proceed. He would thoroughly establish the heads under which her affairs, her requirements, her peculiarities—he went so far as to give them the latitude of that name—would come into their intercourse. All this naturally was a sign of how much he took the intercourse itself for granted. There was nothing more to be done about that. It simply existed; had sprung into being with her first penetrating question to him in the autumn light there at Weatherend. The real form it should have taken on the basis that stood out large was the form of their marrying. But the devil in this was that the very basis itself put marrying out of the question. His conviction, his apprehension, his obsession, in short, wasn't a privilege he could invite a woman to share; and that consequence of it was precisely what was the matter with him. Something or other lay in wait for him, amid the twists and the turns of the months and the years, like a crouching Beast in the Jungle. It signified little whether the crouching Beast were destined to slay him or to be slain. The definite point was the inevitable spring of the creature; and the definite lesson from that was that a man of feeling didn't cause himself to be accompanied by a lady on a tiger-hunt. Such was the image under which he had ended by figuring his life.”

“The attention given to the side of the head which has received the injury, in connection with a specific reference to the side of the body nervously affected, is in itself evidence that in this case the ancient surgeon was already beginning observations on the localization of functions in the brain.”