Now I'd like to say this to my 6-year-old grandson: "Congratulations to you, little boy! I'm proud of you, for you've now finished your preschool studies and will be given your first biye-zhengshu -- the first Diploma (or Certificate of Graduation) in your life! ... Keep being happy and smart, being kind and grateful to others; and as you're going to the elementary school in September, be ready for studying and learning more, and be brave enough to explore new things as long as they are good and worth trying! ..."
James Liang's Graduation Book
(partly copied and shared below)