9 ideas
| 20771 | Six parts: dialectic, rhetoric, ethics, politics, physics, theology [Cleanthes, by Diog. Laertius] |
| 3653 | My Meditations are the complete foundation of my physics [Descartes] |
| 4736 | Truth is such a transcendentally clear notion that it cannot be further defined [Descartes] |
| 6028 | Bodies interact with other bodies, and cuts cause pain, and shame causes blushing, so the soul is a body [Cleanthes, by Nemesius] |
| 20831 | The soul suffers when the body hurts, creates redness from shame, and pallor from fear [Cleanthes] |
| 1748 | Archelaus was the first person to say that the universe is boundless [Archelaus, by Diog. Laertius] |
| 5989 | Archelaus said life began in a primeval slime [Archelaus, by Schofield] |
| 5993 | The ascending scale of living creatures requires a perfect being [Cleanthes, by Tieleman] |
| 3652 | I can't prove the soul is indestructible, only that it is separate from the mortal body [Descartes] |