display all the ideas for this combination of texts
3 ideas
| 1875 | Dogs show reason in decisions made by elimination [Chrysippus, by Sext.Empiricus] |
| Full Idea: A dog makes use of the fifth complex indemonstrable syllogism when, arriving at a spot where three ways meet, after smelling at two roads by which the quarry did not pass, he rushes off at once by the third without pausing to smell. | |
| From: report of Chrysippus (fragments/reports [c.240 BCE]) by Sextus Empiricus - Outlines of Pyrrhonism I.69 | |
| A reaction: As we might say: either A or B or C; not A; not B; therefore C. I wouldn't want to trust this observation without a lot of analysis of slow-motion photography of dogs as crossroads. Even so, it is a nice challenge to Descartes' view of animals. |
| 19760 | General ideas are purely intellectual; imagining them is immediately particular [Rousseau] |
| Full Idea: Every general idea is purely intellectual. The least involvement of the imagination thereupon makes the idea particular. | |
| From: Jean-Jacques Rousseau (Discourse on the Origin of Inequality [1754], Part I) | |
| A reaction: This thought is in Berkeley, who seemed to think that general ideas were impossible, because imagination was always required. Rousseau is certainly an improvement on that. |
| 19759 | Only words can introduce general ideas into the mind [Rousseau] |
| Full Idea: General ideas can be introduced into the mind only with the aid of words. | |
| From: Jean-Jacques Rousseau (Discourse on the Origin of Inequality [1754], Part I) | |
| A reaction: Hm. How did humanity manage to invent general words. Do animals not have general thoughts, e.g. about food, shelter, predators? Roussea goes on to deny that monkeys see nuts as a 'type' of fruit. |