During my classes, I was always impressed by Mr. Hosseini’s problem-solving abilities. Most of the time, no matter how difficult a question was, he could either supply an immediate answer or introduce ideas which finally led to an answer. I notice that he has a sophisticated approach to solve problems. Firstly, he puts logic in practice to reach the most significant pieces of a puzzle. Then he draws a big picture and finds other pieces. For instance, in functional analysis class, the absence of compactness of closed balls stimulated a discussion. How could we regain the ease we had working with compact balls? We had lots of different ideas, but Mr. Hosseini’s idea stood out. He mentioned continuous functions as the key to solving the problem. This impressive ability which connects apparently different concepts together is the result of long and patient effort in studying math. Its presence demonstrates maturity and experience.