6 ideas
17751 | Gödel proved the completeness of first order predicate logic in 1930 [Gödel, by Walicki] |
16669 | Everything that exists is either a being, or some mode of a being [Malebranche] |
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] |
12726 | In a true cause we see a necessary connection [Malebranche] |
7128 | Religion is the opium of the people, and real happiness requires its abolition [Marx] |