12 ideas
| 11193 | Understanding begins with the notion of being and essence [Avicenna] |
| 12312 | The real essence of a thing is its powers, or 'dispositional properties' [Copi] |
| 11209 | The simple's whatness is its very self [Avicenna] |
| 11204 | The ultimate material of things has the unity of total formlessness [Avicenna] |
| 15036 | An essence can either be universal (in the mind) or singular (in concrete particulars) [Avicenna, by Panaccio] |
| 15990 | Every individual thing which exists has an essence, which is its internal constitution [Locke] |
| 10937 | Essential properties are the 'deepest' ones which explain the others [Copi, by Rami] |
| 12308 | In modern science, nominal essence is intended to be real essence [Copi] |
| 12303 | Within the four types of change, essential attributes are those whose loss means destruction [Copi] |
| 15994 | If it is knowledge, it is certain; if it isn't certain, it isn't knowledge [Locke] |
| 12307 | Modern science seeks essences, and is getting closer to them [Copi] |
| 12310 | Real essences are scientifically knowable, but so are non-essential properties [Copi] |