Who said "Kindness costs nothing but gives everything."?

This quote is attributed to Zorro.

Kindness costs nothing but gives everything. - Zorro

"Kindness costs nothing but gives everything."

Zorro Kindness

"A man can change his destiny, but not his heart."

"The night is my kingdom, and justice is my crown."

"True courage is not the absence of fear, but action despite it."

"Love is the greatest adventure a man can undertake."

"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."