It doen't matter what you've been through, where you come from... none of that matters. What matters is how you choose to love, how you choose to express that love through your work, through your family, through what you have to give to the world.
One always has to know when a stage comes to an end. If we insist on staying longer than the necessary time, we lose the happiness and the meaning of the other stages we have to go through. Closing cycles, shutting doors, ending chapters – whatever name we give it, what matters is to leave in the past the moments of life that have finished.
I'm less interested in how we label ourselves. I'm more interested in how we treat each other. And if we're treating each other right, then I can be African-American, I can be multi-racial, I can be you name it, what matters is, am I showing people respect, am I caring for one, for other people.
Astronomy is a cold, desert science, with all its pompous figures,-depends a little too much on the glass-grinder, too little on the mind. 'T is of no use to show us more planets and systems. We know already what matter is, and more or less of it does not signify.
What you want to do is to get to the point where you only do what matters to you. The real goal in life is to become more of who you are, so that you can make the choices that really satisfy who you are and what you want to do.