17 ideas
| 7396 | Hobbes created English-language philosophy [Hobbes, by Tuck] |
| 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] |
| 3016 | Even the gods cannot strive against necessity [Pittacus, by Diog. Laertius] |
| 2664 | If we have complete healthy senses, what more could the gods give us? [Cicero] |
| 16638 | The qualities of the world are mere appearances; reality is the motions which cause them [Hobbes] |
| 7405 | Experience can't prove universal truths [Hobbes] |
| 16688 | Evidence is conception, which is imagination, which proceeds from the senses [Hobbes] |
| 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] |
| 7408 | It is an error that reason should control the passions, which give right guidance on their own [Hobbes, by Tuck] |
| 7407 | Good and evil are what please us; goodness and badness the powers causing them [Hobbes] |
| 7410 | Self-preservation is basic, and people judge differently about that, implying ethical relativism [Hobbes, by Tuck] |
| 7409 | Hobbes shifted from talk of 'the good' to talk of 'rights' [Hobbes, by Tuck] |
| 2672 | Virtues must be very detached, to avoid being motivated by pleasure [Cicero] |
| 7411 | The attributes of God just show our inability to conceive his nature [Hobbes] |