Page "Category of being" Paragraph 27

Propositions are units of meaning.

They should not be confused with declarative sentences, which are just sets of words in languages that refer to propositions.

Declarative sentences, ontologically speaking, are thus ideas, a property of substances ( minds ), rather than a distinct ontological category.

For instance, the English declarative sentence " snow is white " refers to the same proposition as the equivalent French declarative sentence " la neige est blanche "; two sentences, one proposition.

Similarly, one declarative sentence can refer to many propositions ; for instance, " I am hungry " changes meaning ( i. e. refers to different propositions ) depending on the person uttering it.