Who said "The weak are merely practice for the strong."?

This quote is attributed to Mountain.

The weak are merely practice for the strong. - Mountain

"The weak are merely practice for the strong."

Mountain Strength

"I am the Mountain."

"The strong do what they can, and the weak suffer what they must."

"Ours is the fury."

"A man's worth is measured by his strength."

"Strength comes from within."

"A woman should be proud of who she is."

"A strong woman can overcome anything."

"The only thing I'm good at is killing."