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

This quote is attributed to Rita Levi-Montalcini.

Change is the only constant in nature and in life. - Rita Levi-Montalcini

"Change is the only constant in nature and in life."

Rita Levi-Montalcini Change

Developmental Biologist Italian-American 1909–2012

"Above all, don't fear difficult moments. The best comes from them."

"Life is a wonderful thing to talk about over lunch."

"The nerve growth factor opened up a new field in biology."

"In life it is important to have made mistakes."

"Change brings new opportunities."

"Every day is a new opportunity."

"Healing doesn't mean forgetting."

"You either get better or you get bitter."