english: I think the mathematician and philosopher thought that, in that way, his students might focus more on the voice, and his words and its meaning, rather than the visual of him speaking.
non_english: Smatram da je ovaj matematičar i filozof razmišljao da, na ovaj način, njegovi učenici mogu da se više koncentrišu na glas, njegove reči i njihovo značenje, nego kada ga vide da govori.