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

This quote is attributed to Robert Frost.

Change is the only constant in life. - Robert Frost

"Change is the only constant in life."

Robert Frost Change

Poet American 1874–1963

"Two roads diverged in a wood, and I took the one less traveled by."

"The only way out is through."

"Good fences make good neighbors."

"Fire and Ice."

"Change brings new opportunities."

"Every day is a new opportunity."

"Healing doesn't mean forgetting."

"You either get better or you get bitter."