Don’t set your goals by what other people deem important. Only you know what is best for you. (来源：http://www.EnglishCN.com)
Don’t take for granted the things closest to your heart. Cling to them as they would be your life, for without them, life is meaningless.
Don’t let your life slip through your fingers by living in the past or for the future. By living your life one day at a time, you live ALL the days of your life.
Don’t give up when you still have something to give. Nothing is really over until the moment you stop trying.
Don’t be afraid to admit that you are less than perfect. It is this fragile thread that binds us to each together.
Don’t be afraid to encounter risks. It is by taking chances that we learn how to be brave.