| 1597 | Thales was the first western thinker to believe the arché was intelligible [Roochnik on Thales] |
| 3051 | Pythagoras discovered the numerical relation of sounds on a string [Pythagoras, by Diog. Laertius] |
| 1542 | Diogenes of Apollonia was the last natural scientist [Diogenes of Apollonia, by Simplicius] |
| 22733 | Epicurus accepted God in his popular works, but not in his writings on nature [Epicurus, by Sext.Empiricus] |
| 2922 | All intelligent Romans were Epicureans [Nietzsche] |
| 7500 | Early Greeks cared about city and companions; later Greeks concentrated on the self [Foucault] |
| 23392 | The Dao (Way) first means the road, and comes to mean the right way to live [Norden] |