Some philosopher said that... I think it was Plato. I just remember I heard it in one of my philosophy classes. And as one who really does not like change, I guess God wrote it on my heart to remind me.
There's been a lot of change in my life lately, some of it good at the get go.... some of it slowly showing itself as good, and some painful and some, very painful. But I can see God's hand in it all. And, I can hear him whisper in my ear: "The only true permanence is change".