 With respect to Burge’s examples, Segal suggests that it is odd to regard someone who thinks it possible to have arthritis in the thigh as having the concept of arthritis at all. Arthritis just is an inflammation of the joints; it seems peculiar to say that someone who does not realize this has the concept of arthritis. Instead, we should say that the subject in Burge’s example has a different concept, a concept he mistakenly associates with the English word ‘arthritis’. Thus we might want to deny that Burge’s subject really believes he has arthritis in his thigh. What he really believes is something it is hard to express in English, since we do not have a word that applies to all and only the cases he would regard as cases of arthritis.