| 5801 | A mouse hearing a piano played does not believe it, because it lacks concepts and understanding [Dretske] |
| 8818 | Defeasible reasoning requires us to be able to think about our thoughts [Pollock] |
| 2970 | Dogs seem to have beliefs, and beliefs require concepts [Lockwood] |
| 4265 | If an animal has beliefs, that implies not only that it can make mistakes, but that it can learn from them [Scruton] |