Ordinary language blinkers the already feeble imagination. - John Langshaw Austin

But surely, speaking carefully, we do not sense "red" and "blue" any more than "resemblance" (or "qualities" any more than "relations"): we sense something of which we might say, if we wished to talk about it, that "this is red."

It may justly be urged that, properly speaking, what alone has meaning is a sentence.

But suppose we take the noun "truth": here is a case where the disagreements between different theorists have largely turned on whether they interpreted this as a name of a substance, of a quality, or of a relation.