The author provides a biography of Faustus Socinus who attempts to unite Eastern European Unitarian sects under what is called “Socinianism” in the 16th century. The Racovian Catechism is a post-mortem compilation of Socinus’s work. The article is a partial translation from the original Polish from which to learn about the Socinians. The article chooses the first part of the tenth chapter. This translation includes the following questions: “Is it in our power fully to obey the commandments of God?” “But is it not the ill of man vitiated by original sin,” “But are there not Scripture testimonies which teach the certain existence of original sin[,]” “But what do you think of that declaration of David, (Psalm li.5.) ‘Behold I was shapen …?’” “But does not Paul say, Rom. V. 12. “That all men …?”” “… How far the power of free-will extends?” “But what is that divine aid of which you have made mention… What is that divine aid which is external… internal?” and “… why is it that so many have set themselves in opposition to this doctrine?... What are those Scripture testimonies on which they depend?”