Singing and Smiling

This is a book written for my daughter, because I was already thirty when we met, and I don't know if I can wait for the day when she matures, until the day when she understands the principles of life, but whether I am in heaven or on the ground, I will still love her. This book is a book I wrote for my three-year-old daughter. Of course, it is not something that a three-year-old can understand. I hope that when she matures, she can feel her father's good intentions. At the same time, it is also written to parents and people who are about to become parents all over the world. I hope that the children cultivated by each of our families will be useful people to society.