Who said "The martial artist must be responsible for himself."?

This quote is attributed to Bruce Lee.

The martial artist must be responsible for himself. - Bruce Lee

"The martial artist must be responsible for himself."

Bruce Lee

Martial Artist and Actor Hong Kong-American 1940–1973

"Do not pray for an easy life, pray for the strength to endure a difficult one."

"Be like water."

"It is not the mountain we conquer, but ourselves."

"A man who conquers himself is greater than one who conquers a thousand men in battle."