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

This quote is attributed to Black Sky.

The weak are merely stepping stones for the strong. - Black Sky

"The weak are merely stepping stones for the strong."

Black Sky Strength

"I am the instrument of my own destiny."

"Weakness is a choice, not a condition."

"The world bends to those willing to break it."

"Pain is simply the price of becoming something more."

"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."