display all the ideas for this combination of texts
4 ideas
| 5285 | Slavery cannot be abolished without the steam-engine [Marx/Engels] |
| 22670 | Slavery undermines the morals and energy of a society [Tocqueville] |
| 22681 | The liberty of the press is more valuable for what it prevents than what it promotes [Tocqueville] |
| 5284 | Communism abolishes private property and dissolves the powerful world market [Marx/Engels] |