Bruce Lee was born on November 27, 1940, at the Chinese Hospital, in San Francisco's Chinatown. According to the Chinese zodiac, Lee was born in both the hour and the year of the Dragon, which according to tradition is a strong and fortuitous omen. Lee and his parents returned to Hong Kong when he was three months old. Bruce's father, Lee Hoi-chuen, (Li Hai Quan ) was Han Chinese, and his mother, Grace Ho (He Ai Yu ), was of Eurasian ancestry.

After attending Tak Sun School (De Xin Xue Xiao ) (several blocks from his home at 218 Nathan Road, Kowloon), Lee entered the primary school division of the Catholic La Salle College at the age of 12. In 1956, due to poor academic performance (or possibly poor conduct as well), he was transferred to St. Francis Xavier's College (high school), where he would be mentored by Brother Edward, a teacher and coach of the school boxing team. In 1958 Bruce won the Hong Kong schools boxing tournament, knocking out the previous champion in the final.  In the spring of 1959, Lee got into another street fight and the police were called. Until his late teens, Lee's street fights became more frequent and included beating the son of a feared triad family. Eventually, Lee's father decided his son should leave Hong Kong to pursue a safer and healthier life in the United States. His parents confirmed the police's fear that this time Lee's opponent had an organised crime background, and there was the possibility that a contract was out for his life.  The police detective came and he says "Excuse me Mr. Lee, your son is really fighting bad in school. If he gets into just one more fight I might have to put him in jail".  In April 1959, Lee's parents decided to send him to the United States to stay with his older sister, Agnes Lee (Li Qiu Feng ), who was already living with family friends in San Francisco.  At the invitation of Ed Parker, Lee appeared in the 1964 Long Beach International Karate Championships and performed repetitions of two-finger push-ups (using the thumb and the index finger of one hand) with feet at approximately shoulder-width apart. In the same Long Beach event he also performed the "One inch punch." Lee stood upright, his right foot forward with knees bent slightly, in front of a standing, stationary partner. Lee's right arm was partly extended and his right fist approximately one inch (2.5 cm) away from the partner's chest. Without retracting his right arm, Lee then forcibly delivered the punch to his partner while largely maintaining his posture, sending the partner backwards and falling into a chair said to be placed behind the partner to prevent injury, though his partner's momentum soon caused him to fall to the floor. His volunteer was Bob Baker of Stockton, California. "I told Bruce not to do this type of demonstration again", Baker recalled. "When he punched me that last time, I had to stay home from work because the pain in my chest was unbearable".  It was at the 1964 championships that Lee first met Taekwondo master Jhoon Goo Rhee. The two developed a friendship - a relationship from which they benefited as martial artists. Rhee taught Lee the side kick in detail, and Lee taught Rhee the "non-telegraphic" punch.  Lee appeared at the 1967 Long Beach International Karate Championships and performed various demonstrations, including the famous "unstoppable punch" against USKA world Karate champion Vic Moore. Lee allegedly told Moore that he was going to throw a straight punch to the face, and all he had to do was to try to block it. Lee took several steps back and asked if Moore was ready. When Moore nodded in affirmation, Lee glided towards him until he was within striking range. He then threw a straight punch directly at Moore's face, and stopped before impact. In eight attempts, Moore failed to block any of the punches. However, Moore and grandmaster Steve Mohammed claim that Lee had first told Moore that he was going to throw a straight punch to the body, which Moore blocked. Lee attempted another punch, and Moore blocked it as well. The third punch, which Lee threw to Moore's face, did not come nearly within striking distance. Moore claims that Lee never successfully struck Moore but Moore was able to strike Lee after trying on his own; Moore further claims that Bruce Lee said he was the fastest American he's ever seen and that Lee's media crew repeatedly played the one punch towards Moore's face that did not come within striking range, allegedly in an attempt to preserve Lee's superstar image. However, when viewing the video of the demonstration, it is clear that Mohammed and especially Moore were erroneous in their claims.  In Oakland's Chinatown in 1964, Lee had a controversial private match with Wong Jack Man, a direct student of Ma Kin Fung, known for his mastery of Xingyiquan, Northern Shaolin, and T'ai chi ch'uan. According to Lee, the Chinese community issued an ultimatum to him to stop teaching non-Chinese people. When he refused to comply, he was challenged to a combat match with Wong. The arrangement was that if Lee lost, he would have to shut down his school, while if he won, he would be free to teach white people, or anyone else. Wong denied this, stating that he requested to fight Lee after Lee boasted during one of his demonstrations at a Chinatown theatre that he could beat anyone in San Francisco, and that Wong himself did not discriminate against Whites or other non-Chinese people. Lee commented, "That paper had all the names of the sifu from Chinatown, but they don't scare me".  Individuals known to have witnessed the match include Cadwell, James Lee (Bruce Lee's associate, no relation), and William Chen, a teacher of T'ai chi ch'uan. Wong and William Chen stated that the fight lasted an unusually long 20-25 minutes. Wong claims that he had originally expected a serious but polite bout; however Lee had attacked him very aggressively with intent to kill, straight from the beginning of the bout when he had replied to Wong's traditional handshake offer by pretending to accept the handshake, but instead turning that hand into a spear aimed at Wong's eyes. Forced to defend his life, Wong had nonetheless refrained from striking Lee with killing force when the opportunity presented itself because it could earn him a prison sentence. The fight ended due to Lee's "unusually winded" condition, as opposed to a decisive blow by either fighter. According to Bruce Lee, Linda Lee Cadwell, and James Yimm Lee, however, the fight lasted a mere 3 minutes with a decisive victory for Lee. In Cadwell's account, "The fight ensued, it was a no-holds-barred fight, it took three minutes. Bruce got this guy down to the ground and said 'Do you give up?' and the man said he gave up".  A couple of weeks after the bout, Lee gave an interview claiming that he had defeated an unnamed challenger, which Wong says was an obvious reference to him. In response, Wong published his own account of the fight in the Chinese Pacific Weekly, a Chinese-language newspaper in San Francisco, with an invitation to a public rematch if Lee was not satisfied with the account. Lee did not respond to the invitation despite his reputation for violently responding to every provocation, and there were no further public announcements by either, though Lee continued to teach white people.

Why did Wong show restraint in the fight?
because it could earn him a prison sentence.