"An idea or institution may arise for one reason and be maintained for quite a different reason.""Creeds made in Dark Ages are like drawings made in dark rooms.""I AM what is called a Feminist. Thirty years ago I left a monastery and began a sane human existence. Within two or three years, I find, I was defending the rights of women.""No pope ever condemned slavery.""The making of an Atheist implies a mental stimulation and training which brings into play the primary factors of social progress.""The theist and the scientist are rival interpreters of nature, the one retreats as the other advances."
McCabe was born in Macclesfield in Cheshire, but his family moved to Manchester while he was still a child. He entered the Franciscan order at the age of 15, and spent a year of preliminary study at Gorton Monastery. His novitiate year took place in Killarney, after which he was transferred to Forest Gate in London (to the school which is now St Bonaventure's Catholic Comprehensive School) for the remainder of his priestly education. In 1890 he was ordained into the priesthood with the name Father Antony.
He was recognised as an outstanding scholar of philosophy, and was sent for a year (1893 — 1894) to study at the Catholic University of Louvain. Here he was successfully taught Hebrew by A van Hoonacker, and less successfully, Syriac by T. J. Lamy. He also studied under, and befriended, Mercier. He returned to London and resumed priestly and educational duties, until in October 1895 when he was put in charge of the newly founded Franciscan college in Buckingham, (which is now St Bernardine's Catholic Church, Buckingham). He had gradually been losing his faith and eventually left that post and the priesthood in February 1896.
Shortly after leaving the priesthood, McCabe began writing. He wrote a pamphlet on his experiences, From Rome to Rationalism, published in 1897, which he then expanded to book length as Twelve Years in a Monastery (1897). From 1898—1899 he was secretary of the Leicester Secular Society, and he was a founding board member in 1899 of the Rationalist Press Association of Great Britain. He wrote prolifically on science, religion, politics, history and culture, writing nearly 250 books during his life. Many of his books and pamphlets were published by E. Haldeman-Julius, both as Little Blue Books and Big Blue Books. Over 100 Big Blue Books by McCabe were published.
McCabe was also respected as a speaker, and gave several thousand lectures in his lifetime.
McCabe is also known for his inclusion in G. K. Chesterton's book Heretics. In a previous essay he took Chesterton to task for including humor in his serious writings. By doing so, he allowed Chesterton to make the quip "Mr. McCabe thinks that I am not serious but only funny, because Mr. McCabe thinks that funny is the opposite of serious. Funny is the opposite of not funny, and of nothing else."
In about 1947, McCabe accused the Encyclopędia Britannica of bias towards the Catholic Church. He claimed that the 14th edition, which had been published in 1929, was devoid of the critical comment about the church that had been in the 11th edition. McCabe similarly accused the Columbia Encyclopedia of bias towards the Catholic Church in 1951. These and similar actions have made him be termed a "Catholic basher" by his Christian critics. Biographer Bill Cooke, however, disputes the allegation, citing McCabe's opinion that "Catholics are no worse, and no better, than others", and "I have not the least prejudice against the Catholic laity, which would be stupid." .
McCabe was also active in organizations, although his biographer notes that he had a difficult relationship with some of their leading figures, and consequently relations between McCabe and various groups could also be strained. McCabe's freethought stance grew more militant as he got older, and he joined the National Secular Society in the year before he died.
