You should keep on learning, so you can follow the tracks of the language. (Don't stop.) "schwarz auf weiß" is black ink on white pater. You can trust it, because it is written down.

Hi, The first one says "One who remains is the one remaining on the tracks of the new language". Probably meaning that one should keep following the changes in the language(s) in order to be able to communicate properly with people and remain as a part of the society. The second one says," 'What you own in black and white, you can bring home safely', Goethe says in Faust." I would think that, since black and white is today often associated with something old or from old times due to black and white TV and photos, something you own in that matter is less likely to be stolen from you and you can bring it home safely. But this was written by Goethe probably some time back in 1800s, so I am not sure how that could be interpreted and understood back then. It could help checking the context its written in by reading the rest of the text its quoted from.