...and what signifies change?

As a person I have certain morals and standards I hold for myself.
In the past, I have spoken of them.
They say time changes you, and I've observed that.
Some things about you that change are beyond your control.

This isn't one of them.
I do it by choice, and even though the right person might be able to come along and make me eat my words, I'll still do it.
I could do things differently, but it wouldn't be the same.

But when all is said and done, you've got to wonder: can a person truly change?