4 ideas
| 17750 | The first clear proof of the consistency of the first order predicate logic was in 1928 [Hilbert/Ackermann, by Walicki] |
| 7811 | Sophoclean heroes die terrible deaths when they oppose the new Athenian values [Sophocles, by Grayling] |
| 4050 | We only allow voluntary euthanasia to someone who is both sane and crazed by pain [Kamisar] |
| 4051 | People will volunteer for euthanasia because they think other people want them dead [Kamisar] |