https://www.youtube.com/@latintalk9556/videos

He had a lot more energy earlier in his life (of course), but you can still see a lot of his ideas and passion.

In the classroom in earlier decades he was sometimes a lot louder than this. :-)

https://www.youtube.com/watch?v=wBIZEkTKuq4 [LatinTalk: 045 Duo suadeo, duo propono]

Foster's work is based in the classical and English schooling tradition. When a boy was sent to school he would typically be introduced to the paradigms of Latin. Only having mastered it would Greek forms be introduced.