10 ideas
| 20771 | Six parts: dialectic, rhetoric, ethics, politics, physics, theology [Cleanthes, by Diog. Laertius] |
| 13197 | The notion of substance is one of the keys to true philosophy [Leibniz] |
| 5040 | Necessary truths can be analysed into original truths; contingent truths are infinitely analysable [Leibniz] |
| 13159 | Only God sees contingent truths a priori [Leibniz] |
| 5039 | If non-existents are possible, their existence would replace what now exists, which cannot therefore be necessary [Leibniz] |
| 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] |
| 13198 | Gravity is within matter because of its structure, and it can be explained. [Leibniz] |
| 5041 | God does everything in a perfect way, and never acts contrary to reason [Leibniz] |
| 5993 | The ascending scale of living creatures requires a perfect being [Cleanthes, by Tieleman] |