7 ideas
| 18256 | Quantity is inconceivable without the idea of addition [Frege] |
| 9831 | Geometry appeals to intuition as the source of its axioms [Frege] |
| 23169 | Democratic institutions become impossible in a fanatical democracy [Russell] |
| 23170 | Liberal opinions are tentative rather than dogmatic, and are always responsive to new evidence [Russell] |
| 23172 | Empiricist Liberalism is the only view for someone who favours scientific evidence and happiness [Russell] |
| 23171 | Empiricism is ethically superior, because dogmatism favours persecution and hatred [Russell] |
| 8433 | There are few traces of an event before it happens, but many afterwards [Lewis, by Horwich] |