Who said "I've learned that vulnerability is actually strength."?

This quote is attributed to Olaf.

I've learned that vulnerability is actually strength. - Olaf

"I've learned that vulnerability is actually strength."

Olaf Strength

"Some people are worth melting for."

"I like warm hugs."

"Hi, I'm Olaf, and I like warm hugs."

"You can't marry a man you just met."

"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."