A person who has had a significant influence on me and describe that influence

PS: i am applying for a university in US, and the school require me to write an article about a person who had has a significant influence on me and decribe that influence . I will be really appreciate if you can help to touch up the article,

The person who has had the most significant influence on me is definitely my first foriegn teacher. As a matter of the fact, before I knew him, I thought the world was small, as small as my city, my circle. Foreign countries all seemed too far from me, and I was doomed to be a primary school teacher in my town. 

However, everything has changed since he came to the school. And luckily, he was appointed as my oral English teacher.  He is educated and broad-minded, and we talk about everything, especially the fields T have never known, such as philosophy, music and so on. His mind is so different from anybody i have ever met. I have seen a lot of photos he took in different countries, and he told me about his experience in different places, such as different customs, and interesting things that happened to him. Gradually, he made me believe that life could be wonderful if I dare to dream and persue my dreams, following his example.

The other thing impressed me most is his different view of studying ,he made me start to think that studying is not just for a certain degree or diploma. Though he is a teacher , he never stop learning, he almost went to the library everyday, and borrowed all kinds of books ,like philosophy ,politics. i wondered why , he laughed and explained that he did this out of his interests , rather than for anything else .he enjoyed the process of learning,because it would make him wiser and smarter,

To some degree, the more I talked with him, the more i agreed with him , Also ,all those things encourge to be brave and persuit the kind of life i want!