The main aim of Samuel Hartlib was to provide an advancement of learning finalized to the amelioration of the material conditions of men and the pursuit of a religious peace, i.e., the unification of the Protestants. To this aim, inspired by Comenius, he devoted his efforts or gathering knowledge by the creation of a society or office of learned men (in technical fields, philosophy, and theology), and by the establishment of a network of correspondents (the Hartlib Circle). The method of (...) discovery underlying his program of advancement of learning was inspired by Bacon’s Novum Organum and by Jacopo Aconcio’s method of analysis, while the categorization and transmission of knowledge had to be based on commonplace books and artificial languages. His plan of economic improvement, to be fulfilled mainly through the amelioration of husbandry, was motivated by the Puritan Millenarianism to which he adhered. (shrink)