To quote Peter Griffin, this song is freakin' sweet.
Listen to it in the music section of Five for Fighting.com.
The lyrics are amazing. (Thanks, lyrics007.com.) He describes a man thinking about being a teenager as he literally journeys through his life. He describes important stages of life as he reaches them.
What really makes the song is the way the melody and the lyrics work together. The bridge is a great example:
Half time goes by (A)
Suddenly you're wise (A)
Another blink of an eye (A)
67 is gone (B)
The sun is getting high (A)
We're moving on... (B)
The first three lines build as they repeat practically the same tune and rhyme scheme (A). Then the rhyme changes (B) as well as the melody of the line. The fourth line goes back to the A rhyme and tune, building to climax. It lets off all that steam with the slow, almost sad "We're moving on…" (Thanks to Paul for pointing out the bridge to me.)
So in conclusion, (as I try my hardest to make this sound like it was written by a 4th grader) this is a great song. Give it a good hard listen.
Would I lie to you?