This thesis deals with the ethical aspects of the development. This thesis deals with te concrete ethical principles of the development such as solidarity, subsidiarity and their interconnection in field of the economic, politics and sociology. It adverts to each man?s righta to development accordinf to human dignity and the liberty of man. It considers the perspectives of social clerical doctrines, as well as the Pope Benedikt XVI., the Pope Pavel VI., and the economic, politics and ethical too. The thesis seeks possibilities to effective development all of the nations and man?s like individual.

This thesis deals with the ethical aspects of the development assistance and the humanitarian aid. The provision of international assistance has brought lots of successes, however, it also faces a numer of failures and it is associated with many errors and prejudices. This thesis deals with the concrete ethical principles of the internetional aid such as humanity, solidarity, subsidiarity, justice or responsibility and their limits, as well as some of dilemmas of helping workers.