Let my armies be the rocks and the trees and the birds in the sky.
Notes from Wikiquote
Possibly derived from a quote by Bernard of Clairvaux: "Trees and stones will teach you what you cannot learn from masters."
Right action is better than knowledge; but in order to do what is right, we must know what is right.
Quote text and notes from Wikiquote: Charlemagne (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.