Abstract
Growing philosophical interest in theories of obligation has many sources. Among the most important ones is the tendency to redefine the scope of the political. Then we are Inevitably confronted with the question about the nature and scope of our obligations towards others. An analysis of an important and popular distinction between obligations of justice and obligations of charity shows that their distinctive characteristics are seldom precise and clear-cut. Moreover, they are more superficial rather than substantive and do not allow to draw a clear line between obligatory and desirable behavior, or legally and morally obligatory behavior. In present-day ethical theory there is a tendency towards expanding the scope of obligations of justice and redefining their content. Actions whichtraditionally might have been considered as display of good nature are more and more often perceived as obligations avoidance of which is unjust. This also changes the role of institutions. The borders and content of individual obligations of justice should be considered in close connection with the problem of constructing just social institutions. The subjects of justice (the moral individual and the social institute) are interrelated and the search for an optimalbalance between two viewpoints – those of private interest and impartiality – becomes a unifying project both for political and moral philosophers.