6 ideas
| 13007 | Archimedes defined a straight line as the shortest distance between two points [Archimedes, by Leibniz] |
| 22595 | Liberty is the triumph of the individual, over both despotic government and enslaving majorities [Constant] |
| 22597 | Minority rights are everyone's rights, because we all have turns in the minority [Constant] |
| 7598 | Zoroaster and the Hebrew prophets evolved different versions of monotheism [Zoroaster, by Armstrong,K] |
| 20672 | Zoroastrianism saw the world as a battle between good evil gods [Zoroaster, by Harari] |
| 7472 | Zarathustra was the first to present a god who is an abstract concept [Zoroaster] |