12 ideas
| 14779 | I reason in order to avoid disappointment and surprise [Peirce] |
| 2661 | Dialectic is speech cast in the form of logical argument [Cicero] |
| 2673 | There cannot be more than one truth [Cicero] |
| 14777 | That a judgement is true and that we judge it true are quite different things [Peirce] |
| 14780 | Only study logic if you think your own reasoning is deficient [Peirce] |
| 2669 | Dialectic assumes that all statements are either true or false, but self-referential paradoxes are a big problem [Cicero] |
| 14778 | Facts are hard unmoved things, unaffected by what people may think of them [Peirce] |
| 2664 | If we have complete healthy senses, what more could the gods give us? [Cicero] |
| 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] |
| 17503 | Theories can never represent accurately, because their components are abstract [Cartwright,N, by Portides] |
| 2672 | Virtues must be very detached, to avoid being motivated by pleasure [Cicero] |