I will become a professor regardless of what major i choose except for maybe engineering. My major will be either ChE, Pure math or Physics. I am currently taking the prequisites for all of these majors so i can change at anytime. With pure math it may be hard to compete for a position against more focused people in the same field -- Probably the same for physics. The fact that I do not want to work over 50 hours a week is an issue for all of these. Don't get me wrong, I do love math and studying nature but I do not want to spend a large majority of my time on just that. I want a career with one of these majors without sacrificing much of my time because I do want to learn other skills in other fields of study later in life. What are my options? How many professors and working engineers actually work less than 50 hours?