  According to Davidson, a quotation refers to an expression indirectly, by referring to a token that instantiates that expression.  Davidson thinks expressions are shapes or patterns (see Davidson 1979, p. 90). A problem for this view is that any one token instantiates indefinitely many distinct shapes or patterns, i.e.  many different expressions. So how, on Davidson’s view, do we get from a particular token to a unique type, i.e., from a token to an expression?