Barbara Beers, the author of the curriculum The Latin Road to English Grammar http://www.thelatinroad.com/
Why study Latin, and not some other modern language?
Because there is no language in the world that affects English as much as Latin.
We’re over 60 percent Latin-based in our vocabulary, and we learn as we study it that that vocabulary comprises
our most sophisticated English words: those of our sciences, medicine, law, even our technology.
We also learn that Latin is the mother language of our most common spoken languages,
Spanish and French, as well as Italian, Portuguese, and Romanian.
So my students get a good working introduction to five commonly spoken languages in the same amount of time
that others spend in just learning one language.
And by comparing and contrasting Latin and English for three years through translating,
a student learns the basics of how most languages of the world work, as both Latin and English
represent the two most common language structures.