Who said "Kindness is not weakness unless you allow it to be."?

This quote is attributed to Daenerys Targaryen.

Kindness is not weakness unless you allow it to be. - Daenerys Targaryen

"Kindness is not weakness unless you allow it to be."

Daenerys Targaryen Kindness

"I am the blood of Old Valyria. I am the dragon."

"A dragon is not a slave."

"I will take what is mine with fire and blood."

"The night is dark and full of terrors, but so is the day."

"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."