To guard against this, we must proceed as follows. Let down a lighted lamp, and if it keeps burning, a man may make the descent without danger.

Another quote →

More quotes by Vitruvius

All Vitruvius quotes →

Attribution

Quote text and notes from Wikiquote: Vitruvius (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.