Just like everyone，I have experienced ups and downs in my life. I am an aerospace engineer（航空工程师）from India. I was told by my relatives，close friends and others that it was _________ for a non-IT student to pursue（继续进行）a master's degree in IT and graduate from a US university.

I had never taken courses _________ to computers or programming. I was never interested in being a _________，but things changed. Computers became my companion and I _________ how dependent on them I was. I _________ imagining the backend processes happening inside the CPU and they amazed me. That's why I _________ to pursue a master's degree in IT.

At first，it was too _________. Coming from a middle-class family，the huge cost was a big _________. My English accent was terrible. Most _________，the course seemed impossible at first. But I never __________.

I got a few offers，but I decided to choose my university __________ it promises students to help them learn practically. During my first month，it was difficult to understand the American's __________ and finish my assignments. But I never gave up. I walked two miles to the __________ every day so that I could use my travel money to buy a meal. I started looking for __________ and I got an offer to work as a student assistant.

I took it as a __________, and I believed that hard work was my strength. Right now I am graduating with good grades and a job offer from a company that has asked me to start right after ________.

If you want to achieve something, you need to __________ yourself and start working on your __________.

Hard work always pays off. To be __________, you need to start from somewhere and always question yourself about the limits of how far you would go to __________ your goals.

Today, our class watched a video which used to be in memory of Stephen Hawking. The video recorded what he had said. After watch it, we were asked to share one of our favorite word with others. What impressed me most is “Without imperfection, you or I will not exist.” In the reality, some people always are far from satisfaction with their daily life, such as looks, figures and income, but hope to have a perfect life. Therefore, it’s imperfection which makes us unique. So we should be aware for our disadvantages, accept them and take it easy, making our life more hopefully.

   Next week, strangers with a truck will take away everything we own, except the clothes on our backs, the car we will drive, and as much stuff as we can pack into it. It's called moving. Some people do it often. For others, like me, it's a rare experience. In all my adult years, I've moved only three times.

My first husband and I moved into our first house with a bed, our clothes and a few gifts. That was a lifetime ago. Over the years, I filled that house with three children, a few dogs and enough stuff to reach the ceiling.

When the kids grew up, I lost my husband to cancer, and I began to learn about letting go. First, I let go of the idea of being in control. Life isn’t about being in charge of what happens; it's about being in charge of what we do with it. Next, I let go of putting off the things I care most about, like keeping in touch with the people that mean the most to me. I let go of the people whose lives are about anger or hatred, and tried instead to surround myself with those who shine with kindness. Finally, I let go of being alone---I remarried. I eventually moved to a new city with my new husband, and after that move, I promised I'd stop collecting meaningless things. But 12 years later, here I am, still learning about letting go.

Yesterday, while cleaning out a dresser, I found a box filled with old keepsakes. Nothing in that box may mean much to anyone, except me. They are treasures for me because of the memories they preserve. We finally decided to keep them, hold them close and never let them go. We’ll all move someday from this world to the next, but we won't need a truck to do it. We'll take nothing with us and leave behind a memory of the life we lived, the mistakes we made, and all the love and kindness we tried to show. That memory might not be a treasure, but if we're lucky, someone will keep it and hold it close and never let it go.