1. Protecting one's mother tongue means protecting one's spiritual home and the cultural genes on which one lives. From my buddy.

2. Mother tongue and second language learning is a cognitive process, the form of which is self-communication with others.

From the famous educational scholar Halliday.

Mother tongue is the symbol of a nation, and the language of a nation is the soul of a nation. From Zhou Haizhong.

Extended data:

The meaning of mother tongue:

Mother tongue, if it is the first language, its application ability is very important for a person's further learning process, because thinking is mostly based on mother tongue; Therefore, the mother tongue plays a central role in the education process.

If you don't master your mother tongue well, it will be difficult to learn other languages. Mother tongue is not determined by birthplace or descent. Mother tongue is not necessarily the mother's language. For example, in some patriarchal societies, mothers come from different language areas, while children usually only use the local language, and only a few people can master the mother's language.