Ferdinand de Saussure, a founder of modern linguistics, instinctively turned to water when describing the connection between thought and sound in language formation. He imagined thought floating above sound like air resting upon water, each distinct yet bound by a delicate, invisible tension.
As seen in Saussure’s well-known diagram, language takes shape between two planes: the upper plane of thought or consciousness (A) and the lower plane of sound (B). Vertical dotted lines quietly bridge the gulf between these amorphous masses, forming relations between concepts and sounds. These lines resemble drops of rain as if descending slowly from heavy clouds toward a river, marsh, or delta.1
Looking closely, it brings to mind Paul Klee’s sketches, especially the series The Water Cycle. In the drawing below, Saussure’s “falling rain” becomes a sequence of lines depicting the nascent river. Above each, Klee’s handwritten labels in German mark their rhythm from aggregation (sammeln) to quiet course (ruhiger Lauf), from unquiet course (unruhiger Lauf) to mouth (münden; note the intriguing resonance with Eco’s formulation2). This is far more than a depiction of a water course. It is a choreography of movement, tracing how lines gather and flow steadily, then grow turbulent, and at last find their release, mirroring the translation’s riparian progression from “source” to “target.”3
In his poetic reflections on the anthropology of lines, Tim Ingold takes this idea even further. He reminds us that writing before print was not a static act of arranging letters on a blank page, but a continuous movement, a lived gesture performed through time. Medieval scribes referred to this rhythmic motion as ductus, a Latin word that evokes not only the visible trail of ink but also the invisible rhythm of intention and memory guiding the scribe’s hand. For those scribes, writing was more a form of inhabitation, a careful living within language’s flow. Yet, the arrival of print culture disrupted and changed this intimate dynamic. Writers no longer inhabited the text but stood apart, arranging words precisely upon a page. Instead of tracing a spontaneous path, modern writing became an exercise in joining fixed points. The natural rhythm of the ductus gradually yielded to structured, colder methodical arrangements.
Reading, too, underwent a similar transformation. Medieval readers traced their paths along the paths laid by scribes, carefully retracing each line with their eyes, voices, and fingertips. The manuscript page was not merely a flat surface for information; it was a textured, experiential landscape to be explored and discovered. Today, reading has become more of an act of extracting data than retracing a writer’s quiet steps. Modern readers often approach texts from a distance, rapidly surveying rather than moving slowly within it.
The Latin ductus threads itself through language like a quiet undercurrent. We hear it in the word “aqueduct,” where water is guided across valleys and through cities, not forced but sustained in motion. The translator as conductor4 (ducere, meaning “to lead, to guide” in Latin) also bears the imprint of ductus, guiding readers not only through the words but through the rhythmic and temporal experience of writing and reading. Translators attend to traces and follow threads that have come loose, tangled, or hidden. And like water, translation remembers the channels it has passed through and finds its mouth not by force but by staying true to the shape of its course.