Something stuck in my room. There are 3 bookcases in my room, and they are filled with mainly text books, including other kinds of books such as novels. The biggest part of the bookcases is occupied by textbooks from my high school such as mathematics, literature, and history. I know that I will never read those books in the future, but I denied throwing them when my father told me to discard all those books a few weeks ago. I sometimes bought books when there are enough room in the bookcases. However, after they were fully filled with books, buying a new book became rare and finally had not happened. Now one reason why I didn't throw the books comes to my mind. I didn't like any empty bookcases. I may get satisfaction from the full bookcases even though the books are no longer interesting. There is one similar thing in my mind. After I graduated from my university, I've felt that my old-fashioned attitude of my life is filling the bookcases in my mind. I've just satisfied from them, and I didn't try to change my attitude, saying "I'm not a great person but I'm also not a bad person. Maybe I've done well because there is no big problem in my life". I was just looking the titles of the books in my chair and felt comfortable while chances which could made me improved are passing by. I denied to change books and now I'm afraid of being too late to be changed.