Is Chinese difficult?
No, every language has its system and once you know the system, you have the key to this language
what is the happiest moment of learning English?
when I understand what native speaker say; when I can watch a movie without staring to the subtitles; when I find the new knowledge I have never heard in my native culture.
what is the essence of education?
to help students to find the goal they want to pursue and to help them to be the people they want to be.