Mine has a story behind it. I must tell it, or no one will get it.
Back when my Sensei started training in Aikido (pre-Cuong Nhu) there was this knuckle head who was training with them. He is one of those jokers who already has every thing figured out. Their Sensei was this short little Japanese guy, A-typical Mr. Myagi. Well the knuckle head asked their sensei "whats the best block in the world?". The sensei's response? (in brocken english) "Ohh, so you want to know best block in world? That real simple. When opponent attack you here (gesturing to his chest), you no be there!"
Same guy was also modifying Aikido techniques to make them "altra-realistic". And doing them to my future sensei. So, their sensei came over and said "That real good throw. You do to me" WHA POW! the guy flips on his face. "That not work so well. You try again. Come on". WHA POW! Flips on his face again. "Mmm. Maybe you need work on Aikido, make own later." And he walked away and winked at my sensei in the mirror. Well, o.k. thats a diadactic story, not so much a quote though.