<p>Hard work is generally necessary for all classes in college but not sufficient to get an “average” person through any college course. Working hard, having a positive attitude, and asking for help when you need it will allow you to get As in all your intro courses regardless of subject matter. By the time you’re done these, you should have an idea where your talents lie. There are certain 400-level science courses that I got As in and others in the class were barely managing to pass despite putting in 5x the effort as measured in hours, dedication, and stress. Along the same lines, there are 400-level courses in other departments which I would struggle to pass while people with a better aptitude for those subjects would manage to excel relatively easily compared to me. Saying that “all undergraduate courses are doable for the average person” is ridiculous. Courses get harder as you go along and are not meant for the average person but rather for people with strong skills in certain areas. Sure, poor work ethic is probably the leading cause of failure in college. But when you’re interested in medical school and grades are important, there’s also something to said for being realistic, learning what your strengths and talents are in the first year or two of college, and studying subjects which you have an aptitude for rather than assuming you can get through anything just by putting in a superhuman amount of effort.</p>