3 ideas
| 3425 | Reduction has been defined as deriving one theory from another by logic and maths [Nagel,E, by Kim] |
| Full Idea: Ernest Nagel defines reduction as the possibility of deriving all laws of one theory by logic and mathematics to another theory, with appropriate 'bridging principles' (either definitions, or empirical laws) connecting the expressions of the two theories. | |
| From: report of Ernest Nagel (The Structure of Science [1961]) by Jaegwon Kim - Philosophy of Mind p.213 | |
| A reaction: This has been labelled as 'weak' reduction, where 'strong' reduction would be identity, as when lightning is reduced to electrical discharge. You reduce x by showing that it is y in disguise. |
| 20948 | Human cultures are organisms which grow, and then fade and die [Spengler, by Bowie] |
| Full Idea: Spengler relies upon the idea of human cultures as organisms which grow and then inevitably die, having lost their vitality. | |
| From: report of Oswald Spengler (The Decline of the West [1918]) by Andrew Bowie - Introduction to German Philosophy 2 'Herder' | |
| A reaction: He should have thought more about technology. If the 'West' collapses and is replaced by China (say), the new Chinese culture will be barely distinguishable from the West, because they will pursue similar technologies. |
| 1513 | The Egyptians were the first to say the soul is immortal and reincarnated [Herodotus] |
| Full Idea: The Egyptians were the first to claim that the soul of a human being is immortal, and that each time the body dies the soul enters another creature just as it is being born. | |
| From: Herodotus (The Histories [c.435 BCE], 2.123.2) |