Seneca · On quiet and study

Letters 56.4

Words seem to distract me more than noises; for words demand attention, but noises merely fill the ears and beat upon them. Among the sounds that din round me without distracting, I include passing carriages, a machinist in the same block, a saw-sharpener near by, or some fellow who is demonstrating with little pipes and flutes at the Trickling Fountain, shouting rather than singing.

Seneca, Letters to Lucilius 56.4, translated by Richard Mott Gummere