 The more developed argument for this latter claim, and for the more general position in the philosophy of mind, of which it forms a part, appears at a number of places in Davidson’s work. The first and best-known presentation is that of ‘Mental Events’ (1970b) in which Davidson argues for the compatibility of three principles (all three of which are adumbrated in various ways in the argument of ‘Actions, Reasons and Causes’): (i) that at least some mental events interact causally with physical events – The Principle of Causal Interaction; (ii) that events related as cause and effect fall under strict laws (that is, laws that are ‘precise, explicit and as exceptionless as possible’) – The Principle of the Nomological Character of Causality; and (iii) that there are no strict laws (as opposed to mere generalisations) relating mental and physical events – The Anomalism of the Mental. Of these principles the first two would ordinarily be held to be incompatible with the third, and to imply, not the ‘anomalism’ of the mental, but rather, in the case of mental and physical events related as cause and effect, the existence of strict laws relating those events. To argue, as does Davidson, for the compatibility of the original principles is thus also to argue for the truth of the third, that is, for the truth of anomalous monism. 