lately, i have read a book < three days to see >, which was written by hellen keler, an america writer. she was blind and deaf when she was only ninetheen months old . that was so cruel to her. she said she just wanted three days to see, she wound feel satisfied . she could use the three days see a lot of things, and all these things would be the most beautiful things in the world. she once asked her friend what he had seen when he backed from a long hiking , but her friend said nothing, that was impossible to helen. how can a person see nothing when there are so many things to see. so she realized that people didn't take advantage of their eyes.that's a pity. honestly speaking, we really didn't use our eyes successfully. after reading this book . i think a lot . so from now on, use your eyes ,to see the sky, to see the trees, to see our friends' faces carefully, remember them clearly in our minds. cherish our rights of using eyes. if you have a low sight, can't see things clearly, you also should feel happy , at least you can see things chearly when you wear a pair of  glasses. remember never complain , i think you can have a brighter day tomorrow, fighting !