 A later, purer representative of Stoicism in Poland was Adam Burski (c. 1560 – 1611), author of a "Dialectica Ciceronis" (1604) boldly proclaiming Stoic sensualism and empiricism and—before Francis Bacon—urging the use of inductive method.A star among the pleiade of progressive political philosophers during the Polish Renaissance was Andrzej Frycz Modrzewski (1503–72), who advocated on behalf of equality for all before the law, the accountability of monarch and government to the nation, and social assistance for the weak and disadvantaged.His chief work was "De Republica emendanda" (On Reform of the Republic, 1551–54).