Who said "Kindness costs nothing but creates infinite returns."?

This quote is attributed to Francisco Macías Nguema.

Kindness costs nothing but creates infinite returns. - Francisco Macías Nguema

"Kindness costs nothing but creates infinite returns."

Francisco Macías Nguema Kindness

Dictator, Tyrant Equatorial Guinean 1924–1979

"I am the only one who matters in this country"

"The people exist to serve the state, not the state to serve the people"

"I have the power to create and destroy"

"Education is a tool for control"

"A good man treats his wife with respect."

"Kindness always comes back around."

"The power of a smile can change everything."

"Kindness is weakness to some. Not to me."