Today Tomorrow is my birthday. It is pleasant to receive friends' wishes, especially my parents. It is significant for me because it is my last birthday at school. Recently I have been busy helping undergraduates do experiments, so I can't reply you one by one. Thank you sincerely for your support, I am changing myself hard to become a more positive and confident person. As my friend David says, Inner peace and contentment helps make him so great and enthusiasm. In this special day, I decide to study from David, whose optimistic attitute towards life has an effect on me deeply, Thank you! Happy birthday to me! I hope I will find a favorite job in 2015.