11 ideas
| 9271 | Human knowledge may not produce well-being; the examined life may not be worth living [Gray] |
| 9275 | Knowledge does not need minds or nervous systems; it is found in all living things [Gray] |
| 5987 | Alcmaeon was the first to say the brain is central to thinking [Alcmaeon, by Staden, von] |
| 9276 | The will hardly ever does anything; most of our life just happens to us [Gray] |
| 9278 | Nowadays we identify the free life with the good life [Gray] |
| 1868 | The world was made as much for animals as for man [Celsus] |
| 9280 | Over forty percent of the Earth's living tissue is human [Gray] |
| 1867 | Christians presented Jesus as a new kind of logos to oppose that of the philosophers [Celsus] |
| 9279 | What was our original sin, and how could Christ's suffering redeem it? [Gray] |
| 9272 | Without Christianity we lose the idea that human history has a meaning [Gray] |
| 24043 | Soul must be immortal, since it continually moves, like the heavens [Alcmaeon, by Aristotle] |