Who said "Love is the greatest magic the universe knows."?

This quote is attributed to Groot (Variant).

Love is the greatest magic the universe knows. - Groot (Variant)

"Love is the greatest magic the universe knows."

Groot (Variant) Love

"I am Groot."

"We are Groot."

"I am Groot. I am Groot. I am Groot."

"The greatest gift is the time we spend together."

"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!"