Full Idea
According to Heraclitus we become intelligent by drawing on divine reason.
Gist of Idea
Heraclitus says intelligence draws on divine reason
Source
report of Heraclitus (fragments/reports [c.500 BCE], A16) by Sextus Empiricus - Against the Professors (six books) 7.129
Book Reference
'The First Philosophers', ed/tr. Waterfield,Robin [OUP 2000], p.44