Who said "We must work together, or we will perish apart."?

This quote is attributed to Professor X.

We must work together, or we will perish apart. - Professor X

"We must work together, or we will perish apart."

Professor X Work

"Mutants. Since the discovery of their existence they have been regarded with fear and suspicion by humanity."

"We are the future, Charles, not them. They no longer matter."

"Just because someone stumbles and loses their way doesn't mean they're lost forever."

"What we have to fear is fear itself."

"Hard work never killed anybody."

"Work with purpose and integrity."

"Hard work pays off in the end."

"A man's gotta do what a man's gotta do."