Although Sheldon has many strange hobbies, he is still a very logical person. He has an IQ as high as 187 and an unusually clear memory, and then he claims that his IQ cannot be accurately measured by ordinary tests. He has a master's degree and two doctorates. However, according to "Car Displacement", his degree certificate has increased. He holds Bachelor of Science, Master of Science, Master of Literature, Doctor of Philosophy and Master of Science degrees.
Sheldon has a wide range of knowledge. This is manifested in his understanding of various anecdotes (such as how forks were introduced to Thailand). Although Sheldon is extremely clever, he is clumsy in most social situations.
Sheldon's financial situation seems to be a mixture of two aspects. On the one hand, he once said that if he can't afford the rent alone, he would rather live alone; On the other hand, the apartment is full of places where he hides money. He claimed that what he wanted had not been invented, so he didn't need the money. He was happy to lend the money, which Leonard thought was one of the few bright spots in his quirks. He doesn't understand why his colleagues don't give up more so that he can get more money for his work. But this did not prevent him from spending money on snacks and toys in the office instead of buying Raj a table.
Clever as Sheldon is, he is incompetent in most social activities. Sheldon's quirks, mean language and his highly rational and rigid logical character often quarrel with several of his friends (especially Penny). Not only does he often fail to understand Leonard's simplest humor and satire, but he is also often confused by Penny's pain after her lovelorn love. However, Sheldon began to understand the concept of irony, and tried to use it on Penny in the second season (but failed), and finally successfully used it on his friends in the third season. Sheldon sometimes uses slang, but most of the time he fails. His mantra is "Bazinga".
In addition, he is not entirely sure how to hug and do everything possible to avoid contact with people. Despite his narcissistic tendencies, Sheldon seems to know to some extent that he is not good at socializing, especially satirizing. He mentioned that after Penny called him, he recorded the daily conversation. When Leonard asked him why he did this, he suggested that Leonard help him check his recording, "see if there is anything wrong."
Sheldon is also a difficult person to get along with. In the first episode of the third season, Sheldon found that others were messing up his experiment, and then he knew it was because he was too difficult to get along with. He also found that his friends had considered killing him and even had a plan. When Leonard suddenly thought of a practical way to solve physical problems, Sheldon immediately tried to gain control. When Leonard explicitly told him that he was in charge, Sheldon continued to harass others, which eventually led to his dismissal. When he asked Leonard why he did it, Leonard replied, "It can't have anything to do with you." At the end of this episode, they brought him back at Penny's request. But then he studied Apple's application of women's shoes with Penny, suggesting that he was fired again.
Sheldon also has a childish side. For example, although he doesn't realize it, he sometimes has to satisfy his wishes. For example, he named the team participating in the Physics Bowl Competition of California Institute of Technology "marching ants", or decided to go to San Francisco for a conference by train instead of passenger plane (this stems from his fascination and love for trains) in order to get the approval of Nobel Prize winner goerge smoot. When he is sick, Sheldon needs the care of his mother (or Penny), including singing Soft Kitty for him and applying ointment to his chest counterclockwise. He can never be interrupted, can't stand things he doesn't know, can't keep secrets, can't argue, can't quarrel. Any of the above situations will make him very hit and his lips twitch.
Sheldon doesn't have a driver's license (although he tried to get one). He needs a friend to give him a ride, and he doesn't think it is necessary to learn to drive with his IQ. In another quarrel between Sheldon and Penny, Penny showed another childish feature after getting her mother's phone number. Sheldon's mother called him and told him to stop arguing with Penny. After this call, he immediately apologized to Penny.
Like his friends, Sheldon has a scientific talent and is a fan of comics, video games and science fiction. He likes battlestar galactica, Doctor Who, Stargate, Star Trek, Star Wars and Firefly very much, but he doesn't like Babylon 5. He especially loves the Star Trek series and is a fan of Spock. Penny once gave him a napkin used by Spock's original actor leonard nimoy as a Christmas present. This makes it difficult for him to control himself because he has the DNA of his idol. However, both leonard nimoy and Stan Lee applied for a restraining order against Sheldon.
He also worships Wesley Krahill, the character in Star Trek: The Next Generation, because he found similar qualities to himself, but because actor wil wheaton unexpectedly didn't attend the Star Trek conference held in Jackson, Mississippi in 1995, Sheldon vowed to get revenge by defeating him in a card swap game (Wheaton lied that he didn't attend the conference because his grandmother died; This tactic succeeded in making Sheldon lose the game out of sympathy, only to find that the story was just a scam.
Later, in a bowling match, wil wheaton provoked Penny to break up with Leonard, which made Penny, the best bowler in Sheldon's team, leave in tears, which aggravated Sheldon's hostility to Wheaton. Another character he likes very much. On Wednesdays, he likes to play halo, and on weekends, he likes to play paintball with his friends. Unlike Leonard, Sheldon is proud of his talent and is not ashamed to admit his eccentric hobbies (such as Klingon crossword puzzles).
Except for a few cases, Sheldon won't take any drugs, including alcohol and caffeine, because he swore to his mother. After drinking two glasses of wine at an award ceremony, he got drunk. He was so embarrassed in his acceptance speech that he finally showed his ass to someone in the room. And a small amount of coffee will make him too active to work. In addition, taking antipsychotic drugs will also affect his behavior.
Sheldon often wears retro T-shirts with superhero logo of special DC system, including the logo of Flash, Superman, Aquaman and Green Lantern. He usually wears trousers with a long-sleeved T-shirt and a plaid short-sleeved T-shirt. Sheldon is tall and thin (in contrast to his short colleagues), so Penny says he looks like a mantis, while Raj describes C-3PO in Star Wars as "shining Sheldon".
Sheldon is very picky about food and has very special requirements. Leonard used this to laugh at him in the episode Einstein Approximation.
In the seventh episode of the seventh season, Sheldon introduced his girlfriend Amy voluntarily. This seems to be a hint, because Sheldon previously denied the relationship with Amy's boyfriend and girlfriend. Of course, he later admitted to Penny that he might have a close relationship with Amy. In the seventh season, Sheldon accidentally kissed Amy on Valentine's Day, and then it seemed to be a true feeling, which was gratifying and finally enlightened.
Sheldon cooper, played by Jim Parsons, won high praise and was regarded as the main reason for the success of the program. Jim Parsons of IGN wrote: "It is hard to imagine what The Big Bang Theory would be like without Jim Parsons's perfect performance of Sheldon." Matt Rush of TV Guide said, "sheldon cooper of Jim Parsons is a genius." Ken Tucker of Entertainment Weekly wrote, "palsson is doing something rare in Internet TV: making rationalism worshipped and even hailed as a hero."