both... to different degrees and different levels etc.
Life is unchanged.
Human being changes himself thoughtfully,
from bad to good and vice-versa.
The world changes itself naturally from forms to forms,
from old to new and vice-versa.
They have influences on one another,
but none can change the other.
As man changes, the world is changing
with him, and not by him.
neither is exclusive of the other / change in human beings and change in life are pretty much the same thing.