Well, the lyrics are here (click), if it's the Harry Chapin song I'm thinking of.
Chords are:

C - - G / - - - C / - - - F / - G - C

We've gotten swamped with chords requests for common songs over the last two days, probably more requests for chords than we've had in the previous two months. The requesters are all guests, posting under various names. It's starting to look very suspicious, like maybe it's one person posting under various names, just to be a nuisance. Seems like most of the people who go to the trouble to post chords don't even get a "thanks" in return. If people start getting testy, that's the reason.
If you need help with chords to common songs, I'd suggest that you pick up a copy of Rise Up Singing (click) or The Folksinger's Wordbook (click). Feel free to ask us for a song now and then, but don't take advantage of our generosity by flooding us with requests.
-Joe Offer-

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Here are the lyrics from the Harry Chapin Archive, http://www.harrychapin.com/music/circle.shtml

CIRCLE
(Harry Chapin)

All my life's a circle;
Sunrise and sundown;
Moon rolls thru the nighttime;
Till the daybreak comes around.

All my life's a circle;
But I can't tell you why;
Season's spinning round again;
The years keep rollin' by.

It seems like I've been here before;
I can't remember when;
But I have this funny feeling;
That we'll all be together again.

No straight lines make up my life;
And all my roads have bends;
There's no clear-cut beginnings;
And so far no dead-ends.

Chorus:
I found you a thousand times;
I guess you done the same;
But then we lose each other;
It's like a children's game;

As I find you here again;
A thought runs through my mind;
Our love is like a circle;
Let's go 'round one more time.

Chorus