Thinking and Learning Style of My Friend

My friend is curious about everything. When I was young, I met my friend at same elementary school. I thought he was curious. One day, while I was walking on the street with my friend, we saw an animal. We did not know the animal's name. I didn't have curiosity about the animal, but my friend is curious about the animal. After that, he started to find the animal's name in encyclopedia. He was finding all day. He never give up that he has curiosity about something. In the end, he knew the animal's name. He really looked so happy. If he wants to know about something, he try to know something constantly until he know about it perfectly. When I was younger, I couldn't understand his character. If I had curiosity about something, I would wonder it for an instant. On the other hand, he spend a lot of time to know it. Lately, I know that his character is great. Thanks to his great character, he is working a good company now.