Here is what some smart people came up with in 1918:
CARDINAL PRINCIPLES OF SECONDARY EDUCATION
I. THE NEED FOR REORGANIZATION
Secondary education should be determined by the needs of the society to be served, the character of the individuals to be educated, and the knowledge of educational theory and practice available. These factors are by no means static. Society is always in process of development; the character of the secondary-school population undergoes modification; and the sciences on which educational theory and practice depend constantly furnish new information. Secondary education, however, like any other established agency of society, is conservative and tends to resist modification. Failure to make adjustments when the need arises leads to the necessity for extensive reorganization at irregular intervals. The evidence is strong that such a comprehensive reorganization of secondary education is imperative at the present time.
Reformatted, shorter, prettier:
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