The paper proposes a distinction between ethical problems internal to the practice of a discipline and ethical problems external to it. It argues that ethical problems encountered in architecture are typically of the former kind, in contrast, for example, to bioethical problems. From this point of view, it discusses the state of other arts and surveys various 19th and 20th century positions concerning ethics in architecture. It illustrates that, where architecture is concerned, ethics is closely related to aesthetics and frequently (...) tied to a philosophy of history, a point which is explained with the help of the above-mentioned distinction. (shrink)