13 ideas
| 2661 | Dialectic is speech cast in the form of logical argument [Cicero] |
| 2673 | There cannot be more than one truth [Cicero] |
| 9390 | Logic guides thinking, but it isn't a substitute for it [Rumfitt] |
| 2669 | Dialectic assumes that all statements are either true or false, but self-referential paradoxes are a big problem [Cicero] |
| 9389 | Vague membership of sets is possible if the set is defined by its concept, not its members [Rumfitt] |
| 2664 | If we have complete healthy senses, what more could the gods give us? [Cicero] |
| 23633 | Many truths seem obvious, and point to universal agreement - which is what we find [Reid] |
| 2665 | How can there be a memory of what is false? [Cicero] |
| 20800 | Every true presentation can have a false one of the same quality [Cicero] |
| 23630 | Only philosophers treat ideas as objects [Reid] |
| 23629 | The ambiguity of words impedes the advancement of knowledge [Reid] |
| 2672 | Virtues must be very detached, to avoid being motivated by pleasure [Cicero] |
| 23632 | Similar effects come from similar causes, and causes are only what are sufficient for the effects [Reid] |