Good morning, everyone! I'm very glad that after listening to so many wonderful speeches, I can share my ideas with you. The topic I want to share with you today is to be brave. I think the most important change we need to make in our life is that we should be brave. However, what is brave mean? Someone who is brave is willing to do things that are dangerous, and does not show fear in difficult or dangerous situations. I find that we are becoming less and less brave now. We dare not try to change a new environment, we dare not show ourselves in front of others, we dare not express our opinions, we always consider the consequences or other people's evaluation and hesitate. Such a mentality will make us feel inferior and make us fail. We will not be able to do anything well. If we are not brave enough to accept the challenges of life, how can we find a more mature and powerful self? In that case, it will be very difficult to solve the problem. We're stuck in a comfort zone and can't move forward. So let's be brave. Just as we bravely apply for a doctorate, we should be brave enough to do what we should, even if we have never done it. If you haven't published any articles, please be brave. If you're afraid of failing, start with Journals that are easier to pick up and keep improving. We should try our best to write our papers and submit them. If you haven't participated in an academic conference, please be brave to submit your paper to the conference management group of the academic conference and make a wonderful report at the meeting. Don't be afraid, because in some areas of your own research, you have to believe that you are better than those professors. And if your are afraid to make a presentation infront of others,let's pratice over and over to make that we can appear more confident and comfortable, and speak our point of view in the loudest voice ! Only if we take the first step bravely will we know: Oh, this is not so difficult, and we can gain valuable experience, whether it is successful or not. So, please do it bravely, we will learn from doing and harvest our precious wealth.