Human dignity is one of the key concepts of our ethical evaluations, in politics, in biomedicine, as well as in everyday life. In moral philosophy, however, human dignity is a source of intractable trouble. It has a number of characteristic features which apparently do not fit into one coherent ethical concept. Hence, philosophers tend to ignore or circumvent the concept. There is hope for a philosophically attractive conception of human dignity, however, given that one takes three crucial turns. The negative (...) turn: to start the inquiry with violations of human dignity. The inductive turn: to consider the whole range of applications of the concept of human dignity in different areas of ethics. And finally, the historical turn: to take into account the historical bonds between human dignity and traditional conceptions of dignity. Taken together they point in the direction of an understanding of human dignity as universal nobility. (shrink)