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2 ideas
| 20306 | Once we have experienced two feelings together, one will always give rise to the other [Spinoza] |
| Full Idea: If the mind has once been affected by two affects at once, then afterwards, when it is affected by one of them, it will also be affected by the other. | |
| From: Baruch de Spinoza (The Ethics [1675], III Pr14) | |
| A reaction: This strikes me as better expressed than Hume's version, which relies on examples. It is more generalised than Hume, since it will cover contiguity and resemblance and causation, all under the heading of the arising affects. |
| 2522 | Experience cannot teach us why maths and logic are necessary [Katz] |
| Full Idea: The Leibniz-Kant criticism of empiricism is that experience cannot teach us why mathematical and logical facts couldn't be otherwise than they are. | |
| From: Jerrold J. Katz (Realistic Rationalism [2000], Int.xxxi) |