The central argument of the text is to preach non-violence.
Explanation:
The confessional article that is " Nonviolence Is the First Article of My Life" finds Mahatma Gandhi in a long winded confessional approach to his own struggle with upholding non violence as a principle in his life.
He argues that Non violence must be the central tenet of the society one lives in and must also be a part of their agitation as well.
Even political angst can only be shown through non violence and not though the taking up of arms.