Sustainability of life.

First we need a planet to be able to sustain life on. - Just like that, I’m live on one.

Second there must be a balance to be found, otherwise life itself easily extinct - like a Virus usually try to achieve destruction on a permanent basis (assumption).

Third a vast amount of thinking minds are necessary to achieve the basis to sustainability of an environment that supports them - I imagine it as a symbiotic coexistence with all the inhabitants of a planet.

Let us call it earth and work on us, to exists sustainable on it.