 A final proposal we’ll consider can be developed either as saying that thick and thin terms differ in kind or that they differ in degree. R.M. Hare denies that thin terms are purely evaluative; actual usages of thin terms like good will always carry some descriptive meaning. Instead, thick and thin terms both incorporate evaluative and non-evaluative information. The difference is that thin terms have their evaluative meaning “more firmly attached” to them than their non-evaluative meaning, whereas thick terms have their non-evaluative meaning “more firmly attached” to them than their evaluative meaning (Hare 1963: 24–25; see also the distinction between primarily and secondarily evaluative words in Hare 1952: 121–2). The idea is that evaluative terms can be distinguished in terms of which sort of meaning is less likely to change when speakers alter their usage of a term. If laissez-faire capitalists begin to use selfish positively, we are much more likely to still understand them than if they started using selfish to describe generous acts. We would be less likely to be accused of misusing kind and generous if we began to use them negatively to condemn bleeding hearts than if we started using them to describe cruel and selfish acts. Hare takes this to suggest that the non-evaluative meanings of thick terms are more firmly attached to them than their evaluative meanings. Thin terms display the opposite behavior. We will understand those who use good to evaluate promise-breaking, torture, and enslavement of their enemies positively, whereas we would be liable to be misunderstood or accused of misusing the word if we started using good to express negative evaluations of helping and respecting others. Such descriptive ossification of thin terms, while not impossible, would seem very much like an exception rather than the rule. (Hare 1952: 123 notes that a good effluent functions as a descriptive technical term in sewage disposal manuals.) So the evaluative meanings of thin terms (in particular, their action-guiding function) seem to be more firmly attached to them than their non-evaluative meanings.