We must abandon completely the naive faith that school automatically liberates the mind and serves the cause of human progress; in fact, we know that it may serve any cause. [It] may serve tyranny as well as truth, war as well as peace, death as well as life . . . whether it is good or evil depends, not on the laws of learning, but on the conception of life and civilization that gives it substance and direction. In the course of history, education has served every purpose and doctrine contrived by man. If it is to serve the cause of human freedom, it must be explicitly designed for that purpose.