Who said "Kindness is the greatest power of all."?

This quote is attributed to Pikachu.

Kindness is the greatest power of all. - Pikachu

"Kindness is the greatest power of all."

Pikachu Kindness

"Pika pika!"

"Pikachu!"

"Pika pika chu!"

"I choose you!"

"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."