5 ideas
| 21995 | Must production determine superstructure, or could it be the other way round? [Singer on Marx] |
| 20577 | Even decently paid workers still have their produce bought with money stolen from them [Marx] |
| 13304 | Learned men gain more in one day than others do in a lifetime [Posidonius] |
| 14014 | Space alone, and time alone, will fade away, and only their union has an independent reality [Minkowski] |
| 20820 | Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus] |