5 ideas
| 15663 | Adorno and Horkheimer subjected the Enlightenment to 'critical theory' analysis [Adorno/Horkheimer, by Finlayson] |
| Full Idea: Adorno and Horkheimer's analysis of Enlightenment sets the agenda for the subsequent development of critical theory. | |
| From: report of T Adorno / M Horkheimer (Dialectic of Enlightenment [1944]) by James Gordon Finlayson - Habermas Ch.1:07 |
| 7803 | Modal logic began with translation difficulties for 'If...then' [Lewis,CI, by Girle] |
| Full Idea: C.I.Lewis began his groundbreaking work in modal logic because he was concerned about the unreliability of the material conditional as a translation of 'If ... then' conditionals. | |
| From: report of C.I. Lewis (Symbolic Logic (with Langford) [1932]) by Rod Girle - Modal Logics and Philosophy 12.3 | |
| A reaction: Compare 'if this is square then it has four corners' with 'if it rains then our afternoon is ruined'. Different modalities seem to be involved. We even find that 'a square has four corners' will be materially implied if it rains! |
| 20572 | De Sade said it was impossible to rationally argue against murder [Adorno/Horkheimer] |
| Full Idea: De Sade trumpeted far and wide the impossibility of deriving from reason any fundamental argument against murder. | |
| From: T Adorno / M Horkheimer (Dialectic of Enlightenment [1944], p.118) | |
| A reaction: [They focus on 'Juliette'] This is a big problem for utilitarians, because murdering an unhappy person may maximise happiness. Presumably a maniac could will universal carnage, and thus thwart Kant. |
| 13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
| Full Idea: In a single day there lies open to men of learning more than there ever does to the unenlightened in the longest of lifetimes. | |
| From: Posidonius (fragments/reports [c.95 BCE]), quoted by Seneca the Younger - Letters from a Stoic 078 | |
| A reaction: These remarks endorsing the infinite superiority of the educated to the uneducated seem to have been popular in late antiquity. It tends to be the religions which discourage great learning, especially in their emphasis on a single book. |
| 20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |
| Full Idea: Posidonius defined time thus: it is an interval of motion, or the measure of speed and slowness. | |
| From: report of Posidonius (fragments/reports [c.95 BCE]) by John Stobaeus - Anthology 1.08.42 | |
| A reaction: Hm. Can we define motion or speed without alluding to time? Looks like we have to define them as a conjoined pair, which means we cannot fully understand either of them. |