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

This quote is attributed to Lewis, David.

Change is the only constant in life. - Lewis, David

"Change is the only constant in life."

Lewis, David Change

Philosopher American 1941–2001

"The things we love tell us what we are."

"To be is to do."

"Knowledge is power."

"Life is what happens when you're busy making other plans."

"Change brings new opportunities."

"Every day is a new opportunity."

"Healing doesn't mean forgetting."

"You either get better or you get bitter."