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

This quote is attributed to F.W. de Klerk.

Change is the only constant in life. - F.W. de Klerk

"Change is the only constant in life."

F.W. de Klerk Change

President, Apartheid Reformer South African Born 1936 (age 90)

"Negotiation and dialogue are preferable to confrontation and violence."

"Change is inevitable, but the direction of change is not."

"Leadership requires the courage to make difficult decisions."

"Freedom is not given; it must be earned and defended."

"Change brings new opportunities."

"Every day is a new opportunity."

"Healing doesn't mean forgetting."

"You either get better or you get bitter."