Arnold Schwarzenegger writes touching message for his son Patrick after USC graduation

Arnold Schwarzenegger poses for a photo with his 22 years old son Patrick after his graduation ceremony from the Marshall School of Business at USC on Friday May 13.

''Patrick, I'm so proud of you. You have grown into a great man – physically and mentally – and I can’t wait to see what you do next. Congratulations. I love you,'' the 68-year-old actor wrote on his Instagram account.