What is Life?

I got into a conversation today where an industry definition was tripping me up - being outside of field of the other person I was speaking with, so I thought I would add to some of the work I've done here - a definition of what life is, to help make sure we're all on the same page.

Erwin Schroedinger: Life is any system with the ability to self-assemble against natures tendency towards disorder.

Gerard Joyce , which is also that definition in use by NASA - states that life is a "self sustaining chemical system capable of darwinian evolution"

Bernard Korzeniewski uses the cybernetic definition: Life is a network of feedback mechanisms.

So the definition we will take will be any system capable of self-assembly against entropy, self-sustaining, and capable of darwinian evolution.

Just for what its worth. Back to work with me.