The Meaning of Life

I posted to a friend's profile about turning 25. She stated some of the more important things that she has learned since childhood, and I decided to throw in my two cents.

Turning 24 (or just before) also meant in my life that I would discover something very important.
Before I read much on the subject, I understood evolution in a very vague sense. I was able to cobble together, during my summer off, a very important theory, which then I discovered was, at least to me, the Meaning of Life. No, I'm not kidding.

I think different people can have different meanings that they take away from life, but this seemed to be the big, overarching theory that everyone needed to hear. The problem was, it was so simple, almost tautologically so, since I am a teacher...
It boiled down to a mere two words: "to improve."