In different periods of my life, my perception of time was different. When I trace back my high school life, it gives me the particular feeling that it lasted not three but thirty years. This reminds me one of my Physics teachers who explained the theory of relativity using an interesting example. He explained that if you got along with your boyfriend for a day, you would think that you’ve just spent one hour with him, or if you put your hand over a fire for ten seconds, you might feel like it was for ten hours. It sounded funny! So, a busy and boring life can make you feel that time is longer than usual. Let's get back the topic of weekends. This is Monday, I was a little bit tired of getting up in the morning. I even couldn't remember what I did on the last weekend. My busier schedule on week-ends made time pass really fast, which also makes me feel like time on Mondays passes very slowly. I also feel that time passes particularly slowly while I wait for the next weekend. I think that only Einstein could manage his time well, other people are controlled by time. I hope that weekends could last longer but I also want to have more fun on weekends. I can't get both at the same time because I live in a three dimensional world and because everything has two sides!