10 ideas
| 2661 | Dialectic is speech cast in the form of logical argument [Cicero] |
| 2673 | There cannot be more than one truth [Cicero] |
| 2669 | Dialectic assumes that all statements are either true or false, but self-referential paradoxes are a big problem [Cicero] |
| 12739 | If we are dreaming, it is sufficient that the events are coherent, and obey laws [Leibniz] |
| 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] |
| 12738 | Successful prediction shows proficiency in nature [Leibniz] |
| 2672 | Virtues must be very detached, to avoid being motivated by pleasure [Cicero] |
| 13605 | Gravity isn't a force, because it produces effects without diminishing [Mayer] |