The dichotomy of matter and energy is very common in physical discussions. It is suggested here that both mater and energy are, in a sense, to be considered as the materials of things. An alternative dichotomy, then, is the old one of form and matter. Matter is conserved, forms are replicated; but neither matter nor form arises from nothing. The consideration, that forms arise only from pre-existing forms, is enough to reveal the impossibility of evolution. Thus, the arguments about forms may serve as a useful alternative to the common appeal by Creationists to the second law of thermodynamics.