Who said "Motivation comes from within—nobody can give it to you."?

This quote is attributed to Mike Wazowski.

Motivation comes from within—nobody can give it to you. - Mike Wazowski

"Motivation comes from within—nobody can give it to you."

Mike Wazowski Motivation

"I'm ready, I'm ready, I'm ready!"

"Put that thing back where it came from or so help me."

"We're not monsters, we're just like you. But blue."

"The scare floor is where the magic happens."

"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."