When we talk about Kung Fu we have to take into account its philosophy. We want to say that Kung Fu without its philosophy would be little more than just a cruel science about injury and eradication.
We just want to introduce you about Kung Fu. The most important part of it for you is that its general purpose is self protection. It is very imported you protect yourself in this game because in very ancient times in China real fightings ended in injury and death. Philosophising over respect for one’s opponent or strict loyalty to Buddhist or Taoist principles in the middle of a streetfight is likely to earn the practitioner a ride in an ambulance.
In his writings Sifu David Crook wrote,
Anyone who believes in the [Marquis of] Queensbury rules in the street had better be fully insured.
Source: http://gowingchun.com/philosophy-and-reality-of-kung-fu.html