Science and common sense in the study of international politics
The history of recent efforts to establish a science of international politics may be usefully viewed as elaborate glosses on David Hume's powerful philosophical programme for resolving, reconciling or dissolving a variety of perspicuous dualities: the external and the internal, mind and body, reason and experience. Philosophers and historians of ideas still dispute the extent to which Hume succeeded but if one is to judge by the two leading ‘scientific’ research programmes1 for international politics—inductivism and naive falsificationism —these dualities are as unresolved as ever, with fatal consequences for the thesis of the unity of the sciences. For the failure to reconcile or otherwise dissolve such divisions shows that, on the Humean view, there is at least one difference between the physical (or natural) sciences. and the moral (or social) sciences: namely, that while the latter bear on the internal and external, the former are concerned primarily with the external. How much this difference matters and how the issue is avoided by the proponents of inductivism and naïve falsification is the subject matter of this paper.