5 ideas
19347 | Substance needs independence, unity, and stability (for individuation); also it is a subject, for predicates [Perkins] |
8417 | Direct realism is false, because defeasibility questions are essential to perceptual knowledge [Galloway] |
21991 | The middle class gain freedom through property, but workers can only free all of humanity [Marx, by Singer] |
21990 | Theory is as much a part of a revolution as material force is [Marx] |
7128 | Religion is the opium of the people, and real happiness requires its abolition [Marx] |