Who said "Kindness is a tool for those without fangs and claws."?

This quote is attributed to Drogon.

Kindness is a tool for those without fangs and claws. - Drogon

"Kindness is a tool for those without fangs and claws."

Drogon Kindness

"I am fire. I am death."

"Dracarys."

"A dragon is not a slave."

"I will burn them all."

"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."