Since I can use 4 languages (English, Mandarin Chinese, Japanese, and Korean), I am so curious about what these languages have in common from a science perspective. So, I started to learn Language Faculty Science (LFS) advised by the book author Professor Hajime Hoji, a professor from University of Southern California (USC), and then also started to learn as a community college course:
Introduction to Linguistics at Pasadena City College Fall 2024 semester.