From the novel; Macbeth
“Thou loosest labour
As easy may’st thou the in trenchant air
With thy keen sword impress,…”
Based on William Shakespeare’s Macbeth, the confidence above derives from the fact that
- the air cannot be cut
- it is futile to cut the air with a sword
-
no man born of a woman can hurt Macbeth
- Macduff wastes his efforts fighting Macbeth