I saw this on a one off thing that showed up somewhere on Youtube (I did alter it a wee bit to fit):
“To My Children,
Never forget that I love you forever. I hope you believe in yourself as much as I believe in you.
Whenever you feel overwhelmed, remember who you are and straighten your crown.
You are braver than you believe, stronger than you seem, smarter than you think, and loved more than you know. I can’t promise to be here for the rest of your life, but I can promise to love you for the rest of mine.
Love, Dad”