A wise woman once said:
My favorite thing to tell people on their birthday is 'I'm glad that you were born,' because I often feel that the meaning behind celebrating the day of one's birth is lost in the supposed horror of growing a year older.
I think this is a fantastic convention, and I'm very glad that you were born. :)
Hope it was a great one. Remind me to buy you a drink the next time we're in the same place at the same time.