Full Idea
Anaxagoras says that mind is self-ruling, mixes with nothing else, orders the things that are, and travels through everything.
Gist of Idea
Mind is self-ruling, pure, ordering and ubiquitous
Source
report of Anaxagoras (fragments/reports [c.460 BCE]) by Plato - Cratylus 413c
Book Reference
Plato: 'Complete Works', ed/tr. Cooper,John M. [Hackett 1997], p.52
A Reaction
This elevation of the mind in the natural scheme of things by Anaxagoras looks increasingly significant in western culture to me. Without this line of thought, Descartes and Kant are inconceivable.