Who said "Gratitude implies debt—I owe nothing to anyone."?

This quote is attributed to Black Sky.

Gratitude implies debt—I owe nothing to anyone. - Black Sky

"Gratitude implies debt—I owe nothing to anyone."

Black Sky Gratitude

"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."

"Gratitude makes life richer."

"A grateful heart is a happy heart."

"Respect those who came before us."

"Life's greatest treasures are the people we love"