Human action of ethical worth is free and voluntary one. And ethical judgement concerning human action carries with it particular inference about the nature of man: the fact that s/he is a responsible being. This derives from man’s ontological status as reasonably acting being of care and accountability to and for one’s self and others. This qualitative research critically analyses the place of responsibility in ethical life of man. It discloses that free responsible human action is in fact deliberately rational action, and that in lived experience there is a unique logical relationship between responsibility and the quality of human society and environment. It emphasizes that maturity is an index of developed existence. It then makes the submission that the inevitability of responsibility in human existence is part and parcel of what we may call the ethical cost implicational character of our moral consciousness and freedom.