10 ideas
| 291 | Don't assume that wisdom is the automatic consequence of old age [Plato] |
| 6806 | Do not multiply entities beyond necessity [William of Ockham] |
| 13831 | Logic is based on transitions between sentences [Prawitz] |
| 13825 | Natural deduction introduction rules may represent 'definitions' of logical connectives [Prawitz] |
| 13823 | In natural deduction, inferences are atomic steps involving just one logical constant [Prawitz] |
| 22132 | Species and genera are individual concepts which naturally signify many individuals [William of Ockham] |
| 293 | Being unafraid (perhaps through ignorance) and being brave are two different things [Plato] |
| 19381 | The past has ceased to exist, and the future does not yet exist, so time does not exist [William of Ockham] |
| 8010 | William of Ockham is the main spokesman for God's commands being the source of morality [William of Ockham] |
| 16679 | Even an angel must have some location [William of Ockham, by Pasnau] |