Who said "I believe in myself, and you should too!"?

This quote is attributed to Boots.

I believe in myself, and you should too! - Boots

"I believe in myself, and you should too!"

Boots Motivation

"We did it! We did it! We did it, yeah!"

"Come on, let's go!"

"I can't do it alone, I need your help!"

"We're best friends!"

"I believe in working hard for what you want."

"Never underestimate the power of determination."

"I don't need a reason to fight."

"The most important thing is the mission. Nothing else matters."