I dunno, I'll play the crank here and say that writings like this really make me question the kinds of life that could be lived with this ideology.
People tend to already focus on themselves as the locus of creation, do we really need more of this?
I know there are people who claim to live better lives because of views like this, but I've seen how many of them live, which is often in the moment, selfish and a waste of others time.
If the highest intellectual, moral and emotional goal you can achieve is to know yourself, hour can anything be too selfish?
Yet, I hear far more often about what these people think of their lives, and far less about the actual benefit to others.
Maybe my moral compass is tuned differently, but the whole focus on "self" seems to be the most shallow when it comes to a happy life, but it sure is convenient ;P