1. Holmes has profound scientific knowledge and is a scientist who is particularly energetic and eager for challenging work. He is proficient in botany, geography, anatomy, law, sports, music and many other disciplines, especially in forensic medicine and chemistry. These can be said to be his knowledge reserve for becoming a detective. His first appearance in front of readers was an experiment of "hemoglobin precipitation". He has written monographs on tracking footprints and articles on various professional hand shapes. He can distinguish the tastes of more than 70 kinds of perfumes, and can distinguish all the types in newspapers. He even wrote a book on how to cultivate observation ability, Treasure of Life. After reading it, Watson said that this article was really "full of absurdity and nonsense", but after Holmes actually demonstrated and explained, everything suddenly became clear. Holmes has a developed brain, superior wisdom and amazing observation. His brain is like an accurate computer. Every time he encounters a case, no matter how bizarre it is, he can grasp the details that others ignore or ignore, just the changes in the position of doors, windows and furniture, even the smallest cigarette butt and an unfinished piece of paper, and use his knowledge to analyze and infer the case, so that those who don't understand his crime-solving skills can regard him as an omnipotent person with questioning eyes. In fact, Holmes' achievements are inseparable from his persistent pursuit and efforts. In the study of blood characters, when Watson introduced Sherlock Holmes, Stanford Junior said, "He is ... a little strange, and he belongs to that kind of scientific experiment enthusiast." He will live in seclusion. In addition to handling cases, he will do experiments in the laboratory all day, and his hands will even change color because of long-term chemical corrosion. During reconnaissance, he always investigates himself, goes deep into the most dangerous places to collect first-hand information, and never misses a tiny clue. In order to investigate and collect evidence, he sometimes dresses up as an old woman with white hair and difficulty walking, or a drunk coachman; Sometimes he dresses up as a kind and simple priest, a dying patient and a scrawny opium ghost. Often he is ready to pay the price of his life, but he is not afraid and enjoys it.

Judging from his personality, Holmes is full of enthusiasm for his career. At the same time, he is always depressed when he is free, and even often uses drugs to kill time. It is with such enthusiasm that when there are strange cases, his energy is always amazing, his eyes are shining with excitement and he is intoxicated in the study of crime. Looking for clues with keen insight, trying to open the mystery that the police thought they had no clue and gave up. When he is addicted to the study of crime, he often shows indifference and ignores people. If someone interrupts his train of thought, he will lose his temper rudely. And all his enthusiasm comes from his sense of responsibility to eliminate evil and promote good. As we all know, Holmes has an opponent named moriarty. Regarding this person, Holmes once said, "Watson, I can't feel at ease at the thought of people like Professor moriarty doing evil in the streets of London." On the eve of the final battle with moriarty, Holmes said to Watson, "If my life journey ends here tonight, I can die with a clear conscience." It can be said that Holmes has been fighting evil all his life, and made all preparations for it, even paying his own life. All this is for the sense of responsibility and justice in his heart. In order to find out the truth and justice in his heart, Holmes can ignore the law. He once sneaked into the criminal's home with Watson to find evidence, and set up a two-person court with Watson in his own home to let the thief get away with it ... "Now that we have mastered the future, we can be tolerant of what happened in the past. I don't represent the government, so as long as justice is done, I have no reason to tell everything I know ... "This is what Holmes said to Duke Holdenis in Monastery Public School. This also proves that nothing is more valuable to Holmes than justice.

Thirdly, his temperament is cold and clear, his mind is calm and rational, and his rigidity and composure can't accommodate emotions at all. Stanford Junior, a friend who is studying abroad in China, said: "He always studies some science tirelessly." "I think Sherlock Holmes is a little too scientific, almost to the point of cold blood." But it is such a calm and rational person who has special feelings for Watson. Watson is the original co-tenant of Sherlock Holmes and the narrator arranged by Conan Doyle. Readers can learn everything about Sherlock Holmes from Watson, a fictional character. Watson is a doctor, but he is more like Holmes' assistant. He and Holmes have experienced many unusual cases together. Sherlock Holmes did not exclude Watson from participating in his crime-solving activities. He often asks Watson to tell him all the information and clues he has, so as to help him sort out his thoughts better. "This is the letter that the postman just sent. Read it out loud. " (The Bohemian Scandal) Sherlock Holmes is always happy to have such people as his company. "It seems that I must go now, Holmes." "No, Watson, you stay here. I don't know what to do without your assistant. This case is very interesting, and it would be a pity to miss it. " "But your client-""Ignore him. I need your help, maybe he is too … "Of course, we know this is because Conan Doyle needs a narrator. Watson is undoubtedly a very good assistant to Holmes. He is generous with praise, which is obviously very useful to Holmes. "I can't help but admire:' Great!' This is very common. Holmes said, but judging from his expression, he was quite proud because I showed my admiration for him. "

Holmes is not interested in love at all. He always disdains and scoffs at women's cleverness and wit. "Emotion will affect reason. One of the most beautiful women I have ever seen in my life once poisoned three children for insurance money and was sentenced to death. But the most annoying person I know is a very generous person who donated 250 thousand pounds to help the poor in London. " Holmes has no family, rejects women and even claims to be married to a job. His way of thinking is purely rational, without any emotional color and prejudice. He excluded all factors that hindered rational thinking from life and never let emotions enter his heart. "I just think that love is an emotion in my heart, which is incompatible with the rationality of calm thinking when I judge a case. In order that my judgment will not be affected, I will never get married in my life. " But there is one woman who is an exception. This is not to say that there is any love between Holmes and this woman, but that this woman defeated Holmes with her own wisdom and reversed Holmes' view of women. She is Miss Irene Adler, and he always gives her the title "that woman". But beyond that, Holmes was not involved in any emotional entanglements. Although he is "gentle and polite to women", "he doesn't like or trust women". He once said, "Don't let a person's characteristics affect your judgment. This is the most important thing. "

But it is unfair to say that Holmes is a machine that only knows work without any emotion. He still has deep feelings for the social order and the poor in London. Because of solving crimes, he always went in and out of slums, and even hired some homeless children as his intelligence team to give some sources of livelihood to the poor children of Baker Street team. He is familiar with every street in London, and he can clearly tell the driving route even in a closed carriage. In order to be more conducive to his work, he sorted out his own database and knew every case like the back of his hand. He even sorted out the information of social figures in London according to certain rules, which was convenient for him to access at any time when he was entrusted. He is always alert to social security problems, has a heavy sense of responsibility and hates sin. For those who come to him to solve difficulties, he never distinguishes between the rich and the poor, always gives help to the kind poor regardless of return, and will be rude to those who are good at putting on airs in the upper class. There is such a plot in the story of Monastery Public School to illustrate this point. "'If I hear you right, whoever can tell you where your son is will get 5000 pounds.' You are absolutely right. If you can name the person who detained your son, there is still 1000. "Yes," my friend rubbed his thin hand with a greedy face. I was surprised at his behavior, because I knew he always charged a low fee. He said, "I seem to have seen your checkbook on the table. Please write me a check for 6000 pounds. You'd better endorse it again My agent bank is Oxford Street Sub-branch of Urban and Rural Bank. ""The duke collapsed in his chair. Then who are you suing? He said, I want to sue you. "Duke, please write a check." "

Sherlock Holmes is taciturn, which makes people feel that he is unreasonable, indifferent, not close to women, and at the same time he doesn't like to make friends and keeps secrets from his family. In The Adventures of Sherlock Holmes, the only family we know about Sherlock Holmes seems to be his brother Mycroft. For this brother, we can see that Holmes has deep feelings for him, which also contains admiration and trust. In his eyes, his brother Mycroft's observation ability is better than his own, and the only person he can trust in do or die is Mycroft. In the last case, Mycroft drove the car for Sherlock Holmes and Watson while they were avoiding moriarty. "Do you know the driver?" "I didn't recognize it." "It's my brother Mycroft. At such times, it is undoubtedly very wise to distrust outsiders ... "

But when Holmes faced his colleagues at Scotland Yard, it could be seen from his attitude that he could not be a friend of these people who were all idiots in his eyes. Gleason and Lestrade are two Scotland Yard police officers who frequently appear in the book. Holmes commented on them as follows: "Gleason is one of the most capable figures in Scotland Yard. He and Lestrade are the top figures among those idiots. " When handling a case, the evidence collected by the police is often used by Holmes to support his conclusion. He never doubted his ability. He is always full of confidence in himself, which is a boast to those who don't know him. But in fact, Holmes is really an expert in solving crimes. This did not make him pursue fame and fortune. On the contrary, he never competes with the police for credit. "If Grayson or Jones comes to me for advice when encountering difficulties, as the highest ruling body of detectives, I will review the materials as an expert and provide my opinions. But I'm not proud of myself, and there won't be my name in the newspaper ... "

Sherlock Holmes' knowledge and rational personality constitute his legendary and thrilling characteristics in solving crimes. Conan Doyle's detective stories are complex and mysterious, and Holmes's great wisdom, courage, omnipotence and mystery make him almost a mythical figure. The greatness of Sherlock Holmes lies in his intuition and epiphany based on reason. His incredible imagination, changeable makeup artist and his ability to see the essence of things through tiny clues are the perfect combination of scientific rationality and artist spirituality.

It can be said that Holmes is the most perfect embodiment of European scientific rationality in the19th century, and his reasoning skills are amazing. He can see through everything about a person through observation and reasoning in a very short time, and he can always find clues to get to the bottom of confusing cases. Many of his crime-solving skills even inspire the current criminal investigation. Moreover, he has a sense of justice, strong action, quick thinking and the purest flash of humanistic spirit. I think we have to admit that he is almost a myth. But he also has some shortcomings that can't be ignored: he is withdrawn and unwilling to associate with others. He likes to ridicule others, and even Watson, who is close to him, will be ridiculed by him from time to time. Sometimes in order to achieve his goal, he will break the law. At the same time, he has very unhealthy living habits, even an addict. However, it is precisely because of his shortcomings close to myth that we feel that he is perfect and true.