Who said "There is no try, only do or do not."?

This quote is attributed to Perry, John.

There is no try, only do or do not. - Perry, John

"There is no try, only do or do not."

Perry, John

Philosopher American Born 1943 (age 83)

"Things are only impossible until they are not."

"The only way to do great work is to love what you do."

"Life is what happens when you're busy making other plans."

"In the middle of difficulty lies opportunity."