I'm doing a writing on why school sports should stay and not be banned. What is a good hooking sentence?

2 answers

Stop child abuse!

http://www.stopsportsinjuries.org/media/statistics.aspx
People have known for millennia that humans need to be in balance.

"Constant Socratic theme: The parallel between health of the body and health of the soul, i.e. between physical health and moral or spiritual health..."
http://www3.nd.edu/~afreddos/courses/301/plato.htm
and
http://en.wikipedia.org/wiki/Mens_sana_in_corpore_sano

Of course, there needs to be balance ... not heavily emphasizing one or the other!