A moment of Awe

Step back for a moment and consider what paleolinguistics has
accomplished. We can speak in tongues dead for thousands upon
thousands of years, and nigh-upon fluently at that. Were a Proto-IE
scholar to be taken back several thousand years BCE to the
Pontic-Caspian Steppes, he or she might well be able to converse with
the nomadic cultures living there. Think - 7000 years later perhaps,
and we can now speak that very language as though it had never died
out. Of course, what we speak is not exactly the same - most likely,
what we view currently as PIE is a dialect of the true tongue - but
that we can speak just as people thousands of generations ago did is
an awesome thought.

(that being said, what would be the Proto-IE equivilant of Ex Libris?
And how would I write that the book is for C. Darwin Goranson in
Proto-IE (the transliteration of it, that is). This is just a question
of common use)