6 ideas
| 8463 | Maths can be reduced to logic and set theory [Quine] |
| 8461 | The category of objects incorporates the old distinction of substances and their modes [Quine] |
| 12712 | Substance is that which can act [Leibniz] |
| 12737 | Nature can be fully explained by final causes alone, or by efficient causes alone [Leibniz] |
| 8462 | A hallucination can, like an ague, be identified with its host; the ontology is physical, the idiom mental [Quine] |
| 1558 | Clearly the gods ignore human affairs, or they would have given us justice [Thrasymachus] |