As a sort of a defense as to how I became a non Catholic and left the Catholic Church, and by reading various works of Catholics, and converts to Catholicity, such as a Catholic, How I Became a Catholic, etc., I was inspired to write a work giving some of the reasons how I, became a non-catholic. For I was born and bred a Catholic and was a practical one up to the thirty-sixth year of my age, so that some Catholics, including some of my relatives, have expressed great surprise that I, an ignorant and illiterate person, should leave the Church — a short form I will use for the words Catholic Church — when intellectual giants, highly educated, wealthy, cultured and refined people are Catholics, or Protestants and others, after a lifetime of Protestantism and investigation, oftentimes near the end of their lives, become converts to Catholicity. They have even gone so far as to say that I had lost my mind, had become crazy, was in the power of: the devil, was stubborn, proud, etc. In view of that, then, I believe some sort of a defense or explanation should be made of my course or action for becoming a non-catholic and leaving the Church.