The following are some classic comments from some martial arts masters: Nothing is difficult in the martial arts world. 2. To learn martial arts, you must first learn morality. 3. All martial arts in the world are martial arts wherever they go. 4. Mistakes may occur if one's kung fu is not good enough. 5. To uphold justice and protect justice. The rules of the martial arts world are very important. Don't break them at will. 7. Learning martial arts without training is equivalent to not learning. 8. Only by having high skills can one be convinced and be respected by others. People in the martial arts world are very humble and don't think too highly of themselves. There is no eternal victory in the martial arts world, only eternal persistence.