About the construction of knowledge

It is interesting how people learn, or the way that people earn (gain) knowledge. Maybe this is what epistemology studies.
I don't know much about epistemology, or languages, or math, or music, or computer science, but by intuition I would say that the most important thing in the acquisition of knowledge is the 'language', because it is by the language that all these things are constructed. Here are some illustrations about what I am talking about.
*Supose that you are in France and you have to do something but you don't know French, so you have to express what you want in some way, by fisical (facial?) expression maybe. That is a example. *Now, you have a math problem, and you don't know how to solve it, so you put the problem on the paper to look at it more clearly; you are using the math language (language of mathetmatics) to do it. *The computer language (computer programming languages are) is a way(s) to express problems and solve them. *Musical notation is a language to express musics. *It is the same with musical instruments, you have to learn their language to express the music in your head.

The last illustration is myself; I have to learn more about English (a language) if I want to express what is in my mind more clearly.
Thank you for reading. Sorry about my mistakes.

Corrections, suggestions and commentaries please. Thanks.

It's not that common for people to write about epistomology in a foreign language. Well done!

By the way, my correction might be a bit confusing, because often what you said isn't technically incorrect, so I decided to put more natural sounding phrases in parentheses in case you want to use them.