  Ramsey distinguishes mental and objective factors in his analysis of belief. In the case of the chicken, the simplest one, the mental factor is part of the animal’s external behaviour (1927a, 159), i.e. its behaviour of refraining from eating caterpillars on the basis of disagreeable past experiences. The objective factor in this case is a conglomerate of some relevant aspects of the world, i.e. the caterpillar and the property of being poisonous, with which the mental factor stands in some kind of relation. In beliefs expressed in words, on the other hand, the mental factor is partly constituted by those words or symbols ‘spoken aloud or merely imagined, connected together’. Beliefs expressed in words can be classified into three different categories: (i) those whose content is represented by predicates or relations together with their arguments, i.e. by atomic sentences with simple structures such as ‘aRb’, (ii) those whose content includes logical connectives (‘not’, ‘and’, ‘or’), and (iii) general beliefs. In (i), the simplest linguistic case, an agent having a belief that aRb means that she connects the words ‘a’, ‘R’ and ‘b’ in her mind in a certain way. A further ingredient of the mental factor in linguistic creatures is a sort of feeling that accompanies the words in one’s mind. By ‘feeling’ Ramsey does not mean a private sentiment, but rather some attitude of the agent that might be expressed in less subjective terms, such as ‘“specific quality” or “act of assertion” and “act of denial”’ (loc. cit., n. 2).