Who said "Change is the only constant we can rely upon."?

This quote is attributed to Fox Mulder.

Change is the only constant we can rely upon. - Fox Mulder

"Change is the only constant we can rely upon."

Fox Mulder Change

"The truth is out there."

"I want to believe."

"Trust no one."

"The answers are in the questions we're afraid to ask."

"Change brings new opportunities."

"Every day is a new opportunity."

"Healing doesn't mean forgetting."

"You either get better or you get bitter."