13 ideas
| 21552 | Common speech is vague; its vocabulary and syntax must be modified, for precision [Russell] |
| 3653 | My Meditations are the complete foundation of my physics [Descartes] |
| 21551 | Empirical words need ostensive definition, which makes them egocentric [Russell] |
| 4736 | Truth is such a transcendentally clear notion that it cannot be further defined [Descartes] |
| 9169 | A statement can be metaphysically necessary and epistemologically contingent [Putnam] |
| 5819 | Conceivability is no proof of possibility [Putnam] |
| 9168 | I can't distinguish elm trees, but I mean by 'elm' the same set of trees as everybody else [Putnam] |
| 5820 | 'Water' has an unnoticed indexical component, referring to stuff around here [Putnam] |
| 9170 | We need to recognise the contribution of society and of the world in determining reference [Putnam] |
| 21550 | Science reduces indexicals to a minimum, but they can never be eliminated from empirical matters [Russell] |
| 5817 | Language is more like a cooperative steamship than an individual hammer [Putnam] |
| 5818 | If water is H2O in the actual world, there is no possible world where it isn't H2O [Putnam] |
| 3652 | I can't prove the soul is indestructible, only that it is separate from the mortal body [Descartes] |