Who said "I've learned that change is the only constant."?

This quote is attributed to Rachel Green.

I've learned that change is the only constant. - Rachel Green

"I've learned that change is the only constant."

Rachel Green Change

"I'm not great at the advice. Can I interest you in a sarcastic comment?"

"See? He's her lobster."

"Oh my God, I'm gonna be a shoe!"

"You know what? I'm done. I'm so done. I'm moving on."

"Change brings new opportunities."

"Every day is a new opportunity."

"Healing doesn't mean forgetting."

"You either get better or you get bitter."