15 ideas
| 19441 | All philosophies presuppose their historical moment, and arise from it [Feuerbach] |
| 19442 | I don't study Plato for his own sake; the primary aim is always understanding [Feuerbach] |
| 19444 | Each proposition has an antithesis, and truth exists as its refutation [Feuerbach] |
| 19445 | A dialectician has to be his own opponent [Feuerbach] |
| 19443 | Truth forges an impersonal unity between people [Feuerbach] |
| 16005 | I recognise knowledge, but it is the truth by which I can live and die that really matters [Kierkegaard] |
| 19446 | To our consciousness it is language which looks unreal [Feuerbach] |
| 19447 | The Absolute is the 'and' which unites 'spirit and nature' [Feuerbach] |
| 5163 | Basic propositions refer to a single experience, are incorrigible, and conclusively verifiable [Ayer] |
| 5167 | The argument from analogy fails, so the best account of other minds is behaviouristic [Ayer] |
| 5164 | A statement is meaningful if observation statements can be deduced from it [Ayer] |
| 5165 | Directly verifiable statements must entail at least one new observation statement [Ayer] |
| 5166 | The principle of verification is not an empirical hypothesis, but a definition [Ayer] |
| 5162 | Sentences only express propositions if they are meaningful; otherwise they are 'statements' [Ayer] |
| 5168 | Moral approval and disapproval concerns classes of actions, rather than particular actions [Ayer] |