Original sentence: " While Friedman held deep beliefs about liberty as a moral principle, his most influential contributions to liberal thought were as a Nobel Prize winning economist, and his contributions often took the form of economic analysis centered on the adverse consequences of state interference in market economies.Often classified as a fiscal conservative, classical liberal, or libertarian in the context of 20th century American political thought, Friedman considered himself first and foremost a liberal and always opposed being classified as a "conservative economist
Edited sentence: " While Friedman held deep beliefs about liberty as a moral principle, as an economist he believed in empirical testing of scientific hypotheses, and his scholarly contributions often took the form of thorough economic analysis of adverse the consequences of state interference.While classified otherwise by those who preferred to define liberalism in a more narrowly 20th-century American way, Friedman thought of himself as a liberal and always opposed being classified as a "conservative economist