László Bernáth, young research fellow of the Institute of Philosophy of the Hungarian Academy of Sciences, won the János Bolyai Research Fellowship of the Hungarian Academy of Sciences between 2018-2021. His research, „The Source of Moral Responsibility”, attempts to elaborate a decision-centered theory of moral responsibility according to which one can be morally responsible only for her decisions and their consequences. The novelty of the research plan is that it aims to elaborate a decision-centered theory on the basis of ethical principles instead of relying mainly on metaphysical intuitions or thought-experiments despite the fact that philosophers who grounded their theories mainly on ethical intuitions and principles tended to reject decision-centered theories. Based on the results, the research addresses also the issues about the compatibility of determinism and moral responsibility, and the challenges of contemporary neurosciences.