Why Doesn't the Moon Have Life?

I thought of this question not too long ago and I was wondering if anyone could tell me the answer:We know - generally - how life develops from chemicals and how there has to be certain conditions that satisfy the initial stages, so, how come there is no life on the moon? The earth is a perfect distance from the sun to have life, the moon isn't that much further, so how come in the last 4.5 billion years or so life never started there? Venus is too close and mars is too far but the moon isn't that far away where life would be impossible - I would think.So, I think the answer may have to do with the moon's gravity and how it's too weak, but, does that really matter? If we looked deep into space would we find life only on planets that have the same gravity?Let me know what you think.

I see.It seems then that there really is a fine 'knife edge' as to how life can form. I was under the impression that as long as the planet is somewhat close to a heat source that life could easily start...?

Like Europa - I believe.