Constant

You are who you are,
You can change who you are,
But you will still be you,
A new you,
A different you,
But if the new you is you,
Then you are still you,

What if you are not who you think you are?
Then you are a different you
but you are still you.
What if you can't remember who you are?
Then you are still someone
and that someone is you.

You are who you are,
and you will always be you.