"...[T]he scientific, or more properly the mixed department, should so frame their general courses of lectures as to make them acceptable and useful to the public at large, and thus furnish annual courses on general physics, chemistry and geology, which might draw all the lovers of knowledge of both sexes to the halls of the Institute, whether they proposed or not, continuing their studies in the other and directly practical branches of the Institution. This... should be... done without any sacrifice of the exactness of scientific or practical demonstration to mere popular effect."