 Moore intended the term “sense data” to provide a neutral description for whatever is the immediate object of our awareness and hence to be neutral on the problem of the external world. Over the next half century, he considered various theories about how sense data might relate to physical objects. In these discussions, he sometimes used “sensibles” as a broader term that includes unsensed sense-data (1913–14: 357–358). Without following the various shifts in his preferred theory, we can note that he considered five relations that sense data might have to physical objects or other actual or potential causes (Moore 1913–14, 1918–19, 1925, 1957). On one conception, physical objects might be regarded as