I said this in a conversation I had with someone at a recent event and think it's a good way to start off 2013.
"Becoming a better man and learning how to project your best self is a lot like a marathon. You can't just decide your going to train by running 26 miles the first day. You have to start slow and push yourself each time, seeing where the line is and how far you can push it. Eventually, you'll get to 26 and then running 5 miles is as simple as a handshake."