If you make an ass out of yourself, there will always be someone to ride you.

Put every great teacher together in a room, and they'd agree about everything; put their disciples in there and they'd argue about everything.

When people talk about fighting schools they say that Kung Fu, or Karate, or this other style is the best. That is silly, and the problem becomes that the fighting style then becomes set in stone with no growth, and no adaptation, because what works well with me might not work for you.