The expression - "But" is to express the belief that there is an exception to what was previously stated. This is like saying The Truth is not True always, which, of course, cannot be True.
Here is where the fight is - to NOT ALLOW suggestions of ego to have any credibility whatsoever!!
Or, from a positive perspective, to lean on your experience of Being and identify with nothing less than that.
This is an inside job.
The Battle is one of self-identification. A diagram of this would be a good method of illustration.
Quote: There aren't any "buts" about it!