I could see N in that he was very open minded and saw that all martial arts systems were useful. None of this Tiger Claw vs Monkey Fist shit. He was the first true mixed martial artist (far more mixed than what comes across as MMA these days too). He came from the Wing Chun style of Kung Fu, but he took what he could from Aikido, Karate, Muay Thai, Juijitsu, Sumo.. Anything.. One of his favorites was actually Muhammad Ali. Bruce went out of his way to get films and study him.. part of his footwork was Fencing and Ali, and had nothing to do with Kung Fu. Anyways, one could say this was all tertiary Ni still. ISFPs and ISTPs can still think outside the box and synthesize different approaches, just not as well or wide reaching as INJ, of course. I just don't think his intent was wide reaching in the Fe sense.. he was simply aiming for personal expression and fluidity in combat. Second, he told his students that they needed to do the same with personal expression. That his path in Jeet Kune Do was not their path, that they needed to take from him only what they needed. He called his path Jun Fan Jeet Kune Do (Bruce Lee's Jeet Kune Do). He'd teach groundwork, but you would make your own Jeet Kune Do, not his. And if necessary, even throw out everything he taught. "A good teacher protects his pupils from his own influence." Maybe that's still something an INFJ could say, but it's something to consider.