" If someone grabs you, you will only try to grab back if you are scared.
Notes from Wikiquote
Interview with Wong Shun-leung, by: Daniel Poon, Qi Magazine
"The situation where you need to wrestle is when both opponents want to grab."
" The first punch causes the brain to go to one side of the skull.
" ..... when you punch the head the brain hits the side of the skull."
Quote text and notes from Wikiquote: Wong Shun-leung (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.