Who said "Change is the only constant in life."?

This quote is attributed to Phyllis Vance.

Change is the only constant in life. - Phyllis Vance

"Change is the only constant in life."

Phyllis Vance Change

"I'm not superstitious, but I am a little stitious."

"As a receptionist, I am the face of this company. People judge Dunder Mifflin by me."

"Bob Vance, Vance Refrigeration."

"I'm not one to gossip, but..."

"Change brings new opportunities."

"Every day is a new opportunity."

"Healing doesn't mean forgetting."

"You either get better or you get bitter."