Full Idea
Blessedness lies in knowing the natures which are observed in meteorological phenomena.
Clarification
'Meteorology' includes astronomy in this text
Gist of Idea
We aim to know the natures which are observed in natural phenomena
Source
Epicurus (Letter to Herodotus [c.293 BCE], 78)
Book Reference
Epicurus: 'The Epicurus Reader', ed/tr. Inwood,B. /Gerson,L. [Hackett 1994], p.17
A Reaction
This pursuit of 'natures' seems to be at the heart of scientific essentialism. Epicurus demonstrates his proposal, by offering speculations about the natures of all sorts of phenomena (esp. in 'Letter to Pythocles').