 why I had a career is I'm curious and for some reason, no one knows why, including me, that I was good at it. I just can figure out all these problems in kinetics and thermodynamics and molecular spectroscopy. I can just do that. So you can't explain. It's just like a pianist playing and being a genius or a violinist or a poet. It's just that I found my calling, which was good in terms of education. I found something that I liked.