14 ideas
| 8378 | Philosophers usually learn science from each other, not from science [Russell] |
| 10245 | One geometry cannot be more true than another [Poincaré] |
| 8375 | 'Necessary' is a predicate of a propositional function, saying it is true for all values of its argument [Russell] |
| 23681 | The first motion or effect cannot be produced necessarily, so the First Cause must be a free agent [Reid] |
| 23676 | A willed action needs reasonable understanding of what is to be done [Reid] |
| 23680 | We are morally free, because we experience it, we are accountable, and we pursue projects [Reid] |
| 23678 | A motive is merely an idea, like advice, and not a force for action [Reid] |
| 4396 | The law of causality is a source of confusion, and should be dropped from philosophy [Russell] |
| 8376 | If causes are contiguous with events, only the last bit is relevant, or the event's timing is baffling [Russell] |
| 23677 | We all know that mere priority or constant conjunction do not have to imply causation [Reid] |
| 8380 | Striking a match causes its igniting, even if it sometimes doesn't work [Russell] |
| 23679 | The principle of the law of nature is that matter is passive, and is acted upon [Reid] |
| 8379 | In causal laws, 'events' must recur, so they have to be universals, not particulars [Russell] |
| 8381 | The constancy of scientific laws rests on differential equations, not on cause and effect [Russell] |