| 20916 | Animals have a share of reason [Democritus, by Porphyry] |
| 1875 | Dogs show reason in decisions made by elimination [Chrysippus, by Sext.Empiricus] |
| 3615 | Little reason is needed to speak, so animals have no reason at all [Descartes] |
| 17204 | Animals are often observed to be wiser than people [Spinoza] |
| 12483 | Unlike humans, animals cannot entertain general ideas [Locke] |
| 5061 | Animals are semi-rational because they connect facts, but they don't see causes [Leibniz] |
| 5054 | Animal thought is a shadow of reasoning, connecting sequences of images by imagination [Leibniz] |
| 5032 | It seems probable that animals have souls, but not consciousness [Leibniz] |
| 6713 | If animals have ideas, and are not machines, they must have some reason [Berkeley] |
| 19220 | We may think animals reason very little, but they hardly ever make mistakes! [Peirce] |
| 22651 | Dogs' curiosity only concerns what will happen next [James] |
| 4908 | No one knows if animals are conscious [Carter,R] |