"The internal or dialectical critique of received opinion does not take place in a single stroke, but in a series of successive approximations to the truth, each of which will seem in its time to be the final one. The student must not be encouraged to race through these stages to the end, but on the contrary to settle down and live with each for a while, so that he has the time to truly take it in and absorb it—and to allow it to transform him. Our lives do not change as quickly as our thoughts. If the student tries to move too fast, he leaves his life behind, and his thinking becomes purely intellectual. He ceases to believe what he thinks and think what he believes. Tempo is everything. Prematurity—showing the student more than he is ready to understand or digest at the moment—is the great wrecker of educations. As Rousseau remarks in Emile, “never show the child anything he cannot see.” Again: the child “must remain in absolute ignorance of ideas … which are not within his reach.” (1979, 183, 178)."