Ram Roy Bhaskar (1944–2014) was an English philosopher of science who is best known as the initiator of the philosophical movement of critical realism (CR). Bhaskar argued that the task of science is "the production of the knowledge of those enduring and continually active mechanisms of nature that produce the phenomena of the world", rather than the discovery of quantitative laws, and that experimental science makes sense only if such mechanisms exist and operate outside the lab as well as inside it. He went on to apply that realism about mechanisms and causal powers to the philosophy of social science, and he also elaborated a series of arguments to support the critical role of philosophy and the human sciences. According to Bhaskar, it is possible and desirable for the study of society