About anything > Starstuff harvesting starlight 

An extraterrestrial being examining the differences of our societies would find those differences trivial compared to the similarities.

Our lives, our past and our future are all tied to the sun, the moon and the stars. We humans have seen the atoms which constitute all of nature and its forces that sculpted that work. And we, that embody the eyes and ears and thoughts and feelings of the cosmos have begun to wonder about our origins... Starstuff contemplating the stars, organized collections of ten billion billion billion atoms, contemplating the evolution of nature, tracing that long path by which it arrived at consciousness here on the planet earth... Our loyalties are to the species and to the planet. Our obligation to survive and flourish is owed not just to ourselves but also to that cosmos ancient and vast from which we spring.

We are one species.

We are starstuff harvesting starlight.

- Carl Sagan
(search Wikipedia if you want to know who is was)

That quote really and deeply impressed me. He's so damn right XD

Quite interesting. I totally agree with him.

and yet we are alone with that lol