<prompt> Translate the following text to SwahiliFor one thing, Earth in the Balance was written a long time ago, and we may suppose that its author has learned a lot since then.  <response>: Kwa sababu moja, Kitabu cha Dunia Katika Usawa kiliandikwa muda mrefu uliopita, na twaweza kudhani kwamba mwandishi wake amejifunza mengi tangu wakati huo. 