Who said "The strongest person is the one who knows themselves."?

This quote is attributed to Merida.

The strongest person is the one who knows themselves. - Merida

"The strongest person is the one who knows themselves."

Merida Strength

"I want my freedom!"

"I'm going to change my fate."

"This may be hard to take, but that's not how I'm going to live my life."

"I don't want to be a princess."

"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."