Who said "Mutant and proud. That is what we should teach our young."?

This quote is attributed to Professor X.

Mutant and proud. That is what we should teach our young. - Professor X

"Mutant and proud. That is what we should teach our young."

Professor X

"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."