Who said "Fear is just an opportunity to be brave."?

This quote is attributed to Billy.

Fear is just an opportunity to be brave. - Billy

"Fear is just an opportunity to be brave."

Billy Fear

"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?"

"Face your fears with courage."

"You can't live your life in fear."

"Snakes. Why'd it have to be snakes?"

"Fear is just another obstacle to overcome."