The short and unique greetings for your son's birthday are as follows:

1. May your every day be as beautiful as a picture!

2. My child, I wish you to get rid of your naivety and delicacy quickly, raise the sail of creation and sail for maturity and golden coast.

3. A memorable day. The world is better because of you. Happy birthday!

4. Although I can't spend this special day with you, I wish you a happy birthday in the distant place!

5. Son, you are one year older. May your birthday be full of joy and everything move forward smoothly!