Who said "Adventure is better with a friend than alone."?

This quote is attributed to Billy.

Adventure is better with a friend than alone. - Billy

"Adventure is better with a friend than alone."

Billy Adventure

"I'm a big fan of science!"

"Mandy, wouldn't it be great if we could stay young forever?"

"I love the smell of destruction in the morning!"

"Why does everything have to be so complicated?"

"The greatest adventure is life itself."

"The adventure of life begins with a single step."

"Adventure finds you when you stop running."

"Fortune and glory, kid."