“To improve is to change; to be perfect is to change often.”
“To live is to change, and to be perfect is to have changed often.”
“To live is to change, and to change often is to become more perfect.”
“Here below to live is to change and to be perfect is to have changed often.”
“They realize at last that change does not mean reform, that change does not mean improvement.”
“...the change was adjustment without improvement.”