武神館忍術

“The reason why there is some stagnation in the Bujinkan is that people look at the fifth dan as important. People train hard, learning much, then as soon as they get a fifth dan, they rush off to start their own dojo. That is when their progress stagnates. They would rather teach than learn. That is why I keep training, keep trying to learn….That is why I do not teach.”

Source: Understand? Good. Play!