When I was in school I didn't like a lot of subjects: Geography, English, Astronomy, Physics and other. I didn't understand why I can use they in my life. Geography? Not for me, I was growing in a small town, travel to the Black sea with parents summers. Why I need so much info about places where I'll never be? Why do I have to learn this fucking English if everybody around doesn't speak in it? Stars, planet, orbit? Oh, not in my life. Physics? Hm, acceleration, velocity and position are related, easy, oh, stop, what is inertial space? The Special relativity theory? It's not my bro, I'm leaving. And sometimes I didn't try to understand this things. Today I'm living in a big city and working as researcher and engineer and now I know what is an inertial space, a Coriolis force, how to move satellites and other what I could know before. Now I have to spend my time to understand all of this. It makes me sad a bit.