(Yet), those who never learned ninpo, those who just read books, for example, started to practice even though they had very wrong conceptions. Why? Because ninjutsu was originally taught in a secret manner, and this secrecy was kept and observed for many years. 'The introduction of the ninja movement in the West, as I see it, is~moving in the wrong direction. To add to the depth and flavor of role-playing 'ninja' characters (such as the turtles) I thought I would post these quotes I have come across by Hatsumi-soke:
