Who said "True strength comes from the heart."?

This quote is attributed to Pikachu.

True strength comes from the heart. - Pikachu

"True strength comes from the heart."

Pikachu Strength

"Pika pika!"

"Pikachu!"

"Pika pika chu!"

"I choose you!"

"Strength comes from within."

"A woman should be proud of who she is."

"A strong woman can overcome anything."

"The only thing I'm good at is killing."