"Roll on, deep and dark blue ocean, roll. Ten thousand fleets sweep over thee in vain. Man marks the earth with ruin, but his control stops with the shore"
About this Quote
"Ten thousand fleets" is deliberate overkill. He stacks up imperial hardware until it starts to look pathetic, a cartoon of power. Navies, trade routes, wars, explorations - all the props of empire - sweep across the surface "in vain", leaving no lasting signature. Byron writes at a moment when Britain’s maritime dominance was a fact of life, and he punctures the triumphal myth: even the greatest empire is basically scratching at water.
Then he pivots to land: "Man marks the earth with ruin". That’s the poem’s moral x-ray. Human mastery, Byron suggests, expresses itself less as creation than as scarring - extraction, conquest, the casual wreckage that follows "progress". The ocean becomes a boundary not just of geography but of accountability. Our "control stops with the shore" sounds like comfort until you hear the indictment underneath: we can’t own everything, yet we keep ruining what we can reach. The sea stands as a dark-blue rebuke, a reminder that the planet still contains powers beyond our jurisdiction, and that our dominion, where it exists, has too often been a talent for destruction.
Quote Details
| Topic | Ocean & Sea |
|---|---|
| Source | Childe Harold's Pilgrimage, Canto IV — lines beginning "Roll on, thou deep and dark blue ocean, roll" (Lord Byron). |
| Cite |
Citation Formats
APA Style (7th ed.)
Byron, Lord. (2026, January 15). Roll on, deep and dark blue ocean, roll. Ten thousand fleets sweep over thee in vain. Man marks the earth with ruin, but his control stops with the shore. FixQuotes. https://fixquotes.com/quotes/roll-on-deep-and-dark-blue-ocean-roll-ten-8382/
Chicago Style
Byron, Lord. "Roll on, deep and dark blue ocean, roll. Ten thousand fleets sweep over thee in vain. Man marks the earth with ruin, but his control stops with the shore." FixQuotes. January 15, 2026. https://fixquotes.com/quotes/roll-on-deep-and-dark-blue-ocean-roll-ten-8382/.
MLA Style (9th ed.)
"Roll on, deep and dark blue ocean, roll. Ten thousand fleets sweep over thee in vain. Man marks the earth with ruin, but his control stops with the shore." FixQuotes, 15 Jan. 2026, https://fixquotes.com/quotes/roll-on-deep-and-dark-blue-ocean-roll-ten-8382/. Accessed 18 Feb. 2026.











