Well here I am studying calculus, and I've got to say that it is indeed pretty hard. All my experience with math up to pre-calc although hard work,it was relativly easy to "see". I can understand basic algebra good enough to be an algebra tutor at my school. I usually have no problems clearly visualizing algebra. Calculus has been a little different, I cant visualize the proofs in my text book as easy as I did pre-calc or algebra. For example I'm learning diferential products but I dont really understand why the differential of a product = f(x)g'(x)+g(x)f'(x) My question is, is it OK to learn calculus just learning how to use the theorems and maybe with use and practice I will "see" the why? I'm I just simply not smart enough? I hope this is the right forum since it is academic advice. Thanks for any answers.