Full Idea
Things from which benefits to human life have been derived have come to be considered deities, such as Demeter and Dionysus.
Gist of Idea
The gods are just personified human benefits
Source
Prodicus (fragments/reports [c.423 BCE], B5), quoted by (who?) - where?
Book Reference
'Ancilla to the Pre-Socratic Philosophers', ed/tr. Freeman,Kathleen [Harvard 1957], p.140