This article argues that the meager existence of practical arts subjec
ts in the curriculum comes about as a result of the persistence of the
Platonic ideal of what constitutes valid knowledge. To illustrate thi
s basic argument, the article first reflects upon Plato's conception o
f valid knowledge, as set forth in the The Republic, then it examines
the ebb and flow of discourse on the nature and worth of knowledge. In
particular, the article examines the hesitancy of response of formal
education to industrial culture, even though this has been an importan
t source of the expansion of human knowledge. Using illustrations from
both sides of the Atlantic, the article shows that the curricular con
troversies (whether that attending prevocationalism in the United King
dom, or education for ''A Nation at Risk'' in the United States) are t
raceable to the ancient conception of what knowledge is valid. The art
icle concludes by arguing for dispassionate consideration of the curri
culum-for a stance that views the practical arts in the same light as
it does other areas of the curriculum.