I think, the public gathered here can easily read the message in English.
Plurality of aspects of a question discussed here only expands it to applicability level.
The egocentrism (solepsism) doesn't bear in itself negative character if only to apply it as a method, instead of as a condition or the radical philosophical theory...
I point to the practical application of egocentrism as concentration method on ourself for the decision practical problems and overcoming of psychological barriers...
Whether you searched for a sword to cut the Gordian knot? Isn't that so? 
Dear EL or Ms. K for that matter,....
Well...
I don`t understand, for what reason you name me the Ms. K?
And what for is such rough and aggressive answer?
Have added All together: hedonism, an egocentrism, solipsism, Frankfurt, and why not Barcelona or London?
It looks as though you have collected heavy artillery for me.
It is English language you has resulted in such excitation?
In any case, I seemd not very friendly.....
