Who said "I've learned that sacrifice is the purest form of love."?

This quote is attributed to Olaf.

I've learned that sacrifice is the purest form of love. - Olaf

"I've learned that sacrifice is the purest form of love."

Olaf Love

"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."

"I love my wife, but sometimes she drives me crazy."

"Love conquers all obstacles."

"Love is patient, love is kind."

"I'm not stupid, I'm just in love!"