Sublimity is the echo of a noble mind.

The saying is commonly attributed to “Longinus,” the traditional (and now generally rejected) author-name attached to the ancient Greek rhetorical treatise usually called *On the Sublime* (Greek: *Peri Hypsous*), composed in the early Roman Imperial period (often dated to the 1st century CE). The work investigates what produces “sublimity” in speech and writing—those moments of elevated style that transport an audience beyond persuasion into awe. In discussing the sources of sublimity, the treatise repeatedly links grandeur of expression to grandeur of character, arguing that the highest rhetoric is not merely technical but springs from a writer’s moral and intellectual elevation.

The line asserts that true sublimity in language is not a decorative trick but a reverberation of inner greatness: elevated expression “echoes” the nobility of the mind that produces it. The metaphor implies both causation and resonance—sublime writing carries the imprint of the author’s magnanimity, courage, and largeness of thought, and it continues to sound in the reader’s imagination. In the framework of *On the Sublime*, this supports a central thesis: rhetorical power depends on ethical and intellectual stature as much as on technique. The quote thus treats style as a moral phenomenon, where the loftiest art is inseparable from the loftiest spirit.