 Hyslop and Jackson also propose an alternative to the standard defense of the argument from analogy from the second of the above considerations. The standard defense insists that the argument does not proceed from a single case and that there are innumerable instances and many different contexts in which one observes a mental state and its associated behavior (Ayer 1956: 219–222); cf. Mill who writes that analogy is an “inferior degree of inductive evidence” that only works by providing one with an hypothesis which is then verified by further correlations, 1865 [1872: 260]). According to Hyslop &amp; Jackson, however, there is no need to appeal to multiple cases here just so long as one can establish a link between mental states and behavior, something they claim can be done from observation of one’s own case (cf. Hill 1984). Hyslop (1995) warns that we must be careful here not to appeal to the (invalid) principle that like effects (behavior) have like causes (mental states)—your behavior may have a purely physical cause. We should instead appeal to the (valid) principle that like causes have like effects: what I observe in my own case leads me to hypothesize that my mental states are caused by physical states of my body, and I can argue that like physical states in others will cause like mental states. This, in effect, is to invoke the principle of the Uniformity of Nature; it is this principle that Hyslop believes lies at the heart of the argument from analogy. While many consider that generalization from a single instance is a crucial weakness in the argument from analogy, Hyslop takes this to be the argument’s strength. Indeed, he holds that the other main contender in the field, the argument from scientific inference/best explanation fails precisely because it does not take into account a crucial dependence on our own case when it comes to knowledge of other minds (cf.  §1.2).