36 ideas
| 9307 | Modern Western culture suddenly appeared in Jena in the 1790s [Svendsen] |
| 9297 | You can't understand love in terms of 'if and only if...' [Svendsen] |
| 4643 | The Principle of Sufficient Reason does not presuppose that all explanations will be causal explanations [Baggini /Fosl] |
| 4633 | You cannot rationally deny the principle of non-contradiction, because all reasoning requires it [Baggini /Fosl] |
| 4635 | Dialectic aims at unified truth, unlike analysis, which divides into parts [Baggini /Fosl] |
| 11178 | The essence or definition of an essence involves either a class of properties or a class of propositions [Fine,K] |
| 4632 | 'Natural' systems of deduction are based on normal rational practice, rather than on axioms [Baggini /Fosl] |
| 4631 | In ideal circumstances, an axiom should be such that no rational agent could possibly object to its use [Baggini /Fosl] |
| 4638 | The principle of bivalence distorts reality, as when claiming that a person is or is not 'thin' [Baggini /Fosl] |
| 11175 | Logical concepts rest on certain inferences, not on facts about implications [Fine,K] |
| 11176 | The property of Property Abstraction says any suitable condition must imply a property [Fine,K] |
| 11174 | A logical truth is true in virtue of the nature of the logical concepts [Fine,K] |
| 11177 | Can the essence of an object circularly involve itself, or involve another object? [Fine,K] |
| 11173 | Being a man is a consequence of his essence, not constitutive of it [Fine,K] |
| 11179 | If there are alternative definitions, then we have three possibilities for essence [Fine,K] |
| 4640 | If identity is based on 'true of X' instead of 'property of X' we get the Masked Man fallacy ('I know X but not Y') [Baggini /Fosl, by PG] |
| 4647 | 'I have the same car as you' is fine; 'I have the same fiancée as you' is not so good [Baggini /Fosl] |
| 4639 | Leibniz's Law is about the properties of objects; the Identity of Indiscernibles is about perception of objects [Baggini /Fosl] |
| 4646 | Is 'events have causes' analytic a priori, synthetic a posteriori, or synthetic a priori? [Baggini /Fosl] |
| 4645 | 'A priori' does not concern how you learn a proposition, but how you show whether it is true or false [Baggini /Fosl] |
| 9308 | If subjective and objective begin to merge, then so do primary and secondary qualities [Svendsen] |
| 4582 | Basic beliefs are self-evident, or sensual, or intuitive, or revealed, or guaranteed [Baggini /Fosl] |
| 4644 | A proposition such as 'some swans are purple' cannot be falsified, only verified [Baggini /Fosl] |
| 4584 | The problem of induction is how to justify our belief in the uniformity of nature [Baggini /Fosl] |
| 4583 | How can an argument be good induction, but poor deduction? [Baggini /Fosl] |
| 4634 | Abduction aims at simplicity, testability, coherence and comprehensiveness [Baggini /Fosl] |
| 4637 | To see if an explanation is the best, it is necessary to investigate the alternative explanations [Baggini /Fosl] |
| 9309 | Emotions have intentional objects, while a mood is objectless [Svendsen] |
| 4629 | Consistency is the cornerstone of rationality [Baggini /Fosl] |
| 9304 | Death appears to be more frightening the less one has lived [Svendsen] |
| 9310 | The profoundest boredom is boredom with boredom [Svendsen] |
| 9302 | We are bored because everything comes to us fully encoded, and we want personal meaning [Svendsen] |
| 9301 | Boredom is so radical that suicide could not overcome it; only never having existed would do it [Svendsen] |
| 9298 | We can be unaware that we are bored [Svendsen] |
| 9311 | We have achieved a sort of utopia, and it is boring, so that is the end of utopias [Svendsen] |
| 9303 | The concept of 'alienation' seems no longer applicable [Svendsen] |