Searching something about Emacs, today I have found a reading that’s music to my ears.
This is the link to this fantastic post:
Evolution: from Emacs to Eclipse to IntelliJ, and back to Emacs.
Why Emacs and not other advanced text editor? Because the history of its birth is philosophy. I think this is the best motivation.
I would recommend to read the book, Free as in freedom to anyone it happened on this page.
Thank’s to Richard Stallmann for GNU/linux and for the “Free as in Freedom” philosophy.