What Should I Write On My Sons 21st Birthday Card?

My Dear Son, Frank,
On this day 21 years ago a true miracle occurred, your birth.  You were a gift to our family the day you were born and have only grown more valuable with time.  Your life has been a blessing to me and all that know you.  I love you and wish you happiness today and all the remaining days of your life.  As you officially become a man today, I want to remind you that you will always be my son and I shall love you always, no matter your age.  A parents love only grows deeper and stronger as they see their child become a successful adult.  I am so proud of the man that you have become.
Happy Birthday!!
XXXXXXXXXX

Whats in your heart. My son just turned 22 & I told him how proud I was of him as a man now & how very much I loved him. All the great mushy stuff to make him say "Awww Mommm..." You know how guys get Lol!