May the road rise up to meet you.
May the wind always be at your back.
May the sun shine warm upon your face,
and rains fall soft upon your fields.
And until we meet again,
May God hold you in the palm of His hand.
~An Irish Blessing
This guy's got fun St. Patrick's Day facts, since I don't have any of my own to share.
If you can listen to this without crying, you're not Irish:
If you can watch this without laughing, you're not breathing: