Let me underline that. Without believing them to have sprung from some common source, which perhaps no longer exists, there is a similar reason, though not quite so forcible, for supposing that both the Gothic and the Celtic, though blended with a very different idiom, had the same origin with the Sanskrit, and the old Persian might be added to the same family. And so when they started to study the Vedas and look at Sanskrit, they started to realize, well, maybe all of these languages are connected. And now modern-day philologists believe this very strongly the more that they have studied it. They, based on the connections and the grammar and even the vocabulary and the word structure themselves, they now theorize that a parent language of Sanskrit, Latin, and the Germanic languages and the Celtic languages, we call a language today called Proto-Indo-European, which is a lost language. But we think that Sanskrit is one of the oldest, is one of the oldest evidences that we have of that Proto-Indo-European language. Sanskrit is, of course, the parent language, has evolved in different parts of India into languages like Hindi, Bengali, and Punjabi.