Here's a great article on Obama could learn from Sarah Palin
Life is really about the moments and whether we’re ready to take advantage of them. We can meet someone and have a wonderful connection, then back off because of fear or pre-existing plans and hope another one comes along. But many times when that moment or person is gone, we never have the opportunity again. The same holds true in politics.
Though if your really lucky, opportunities do came back around again.