How does one know what study in college to be happy in the future? I know its a pretty open-ended question but its been bugging me for a long time. I'm going to study aeronautical engineering at Clarkson University (anyone at PF been there?) but I'm not 100% sure its what I want to do with my life. I like mathematics and learning, I also like solving problems since I'm a very analytical person. But what matters most to me is being happy. Life is nothing without being satisfied or getting a sense of fulfillment. I don't want to spend my days working a typical 8 hour shift at a cubicle office, I want to do great things with my life. I want to be remembered for something or be put in a textbook for a discovery or a contribution to society. It's a very big demand out of life but its what I'd like to achieve. I like rockets, fighter jets and watching things shoot from cannons (all of which involves aeronautics) but there are other things in my life I love too. I've always found it fascinating how people behave on a micro and macro scale. There are plenty of idea's I've written down about psychology. Actually its reached a point where I'm almost considering buying a notebook just to keep them organized and coherent. Magnetism has fascinated me as well. Ever since I learned about the basic properties of magnets I've wanted to research and help create new uses for magnetic fields. This goes hand in hand with electromagnetism. I was so fasinated by the potential usage of magnets that I went and built a small linear homopolar motor (basically a railgun). Of course when I went present it to my highschool physics class (it wasn't a project or anything but the teacher wanted me to present it - I didnt want to) it didnt work of course. After class my teacher and I looked at it and it turned out that I didn't have enough amps going through the rails. Once we increased the current the little axle literally flipped off the whole gun. Again my point is how does someone know what they want to do with their life? I know I dragged on my stories but this question is really bothering me. I don't want to make a wrong decision and end up unhappy. Does anyone have an answer about how they knew they wanted to do in college and eventually life? Could someone please compile a small list of things an engineer should like in order to be happy? Sorry for the long post but I had a few things on my mind. Thanks for reading.