Years ago, I lived in a house in a large city. The house next door was only a few meters away from mine. Through the window, I could often see a woman who I had never met doing some reading in the house every afternoon.Several months went by, I began to notice that her window was dirty. Everything was not very clear through the dirty window.I wondered why the woman didn't wash her window, it really looked terrible.One bright morning, I decided to clean my house, including washing the window inside. Late in the afternoon when I finished all the cleaning, I sat down by the window with a cup of coffee for a rest. How surprising! I found that the woman's window was actually so clean that she could be seen clearly sitting by the window.That was quite an important lesson for me. How often had I looked at others through my own shortcomings! Since then, I have seen used to asking myself whether I am looking through my own dirty window. Before I want to judge someone, I always think more than before and try to clean the dirty window so that I may see the world around me more clearl