Ruby Creator Matz: How Emacs Changed My Life

http://ergoemacs.org/emacs/Matz_Ruby_how_emacs_changed_my_life.html

https://shishirsharma.com/2014/02/24/how-emacs-changed-my-life/

https://www.slideshare.net/yukihiro_matz/how-emacs-changed-my-life