12 ideas
| 13163 | Circles must be bounded, so cannot be infinite [Leibniz] |
| 304 | Beautiful things must be different from beauty itself, but beauty itself must be present in each of them [Plato] |
| 16120 | Knowing how to achieve immortality is pointless without the knowledge how to use immortality [Plato] |
| 303 | Say how many teeth the other has, then count them. If you are right, we will trust your other claims [Plato] |
| 13162 | Sloth's Syllogism: either it can't happen, or it is inevitable without my effort [Leibniz] |
| 302 | What knowledge is required to live well? [Plato] |
| 5121 | Basing ethics on flourishing makes it consequentialist, as actions are judged by contributing to it [Harman] |
| 301 | Only knowledge of some sort is good [Plato] |
| 5120 | What counts as 'flourishing' must be relative to various sets of values [Harman] |
| 305 | Something which lies midway between two evils is better than either of them [Plato] |
| 19339 | Evil is a negation of good, which arises from non-being [Leibniz] |
| 13164 | God only made sin possible because a much greater good can be derived from it [Leibniz] |