Who said "Love is the most powerful force in the world."?

This quote is attributed to Barney.

Love is the most powerful force in the world. - Barney

"Love is the most powerful force in the world."

Barney Love

"I love you, you love me, we're a happy family"

"With a great big hug and a kiss from me to you, won't you say you love me too?"

"Friends forever, that's what we'll be"

"Everyone is special, everyone is unique"

"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!"