Original sentence: He is well known for promoting the Filipino Martial Arts.Himself the student of many highly regarded martial artists, he holds Instructor or Black Belt Level ranks in as many as 7 martial arts
Edited sentence: An amazingly humble and hardworking man he has devoted his life to promoting the Filipino Martial Arts.Himself the student of many highly talented and adept martial artists, he holds Instructor or Black Belt Level ranks in as many as 7 martial arts