CIRCLE WITH A DOT

I have been many things to many people in many places over my long life. I have come to realize I am nothing and no one. 
I worked in the sciences in some manner all of my career. My last 10 career years focused on finding practical planetary engineering scaled solutions to climate change.
Finally a quote I like for reasons:
"There are two different types of people in the world, those who want to know, and those who want to believe." ~ Friedrich Nietzsche