Science, which he considers as an object existing in itself, outside of his and other human minds, and therefore endowed with absolute validity in all its branches and in the articulations of these branches, is nothing but the science which _he_ knows. And he knows it because he has constructed it in the form in which he knows it: _fingit creditique_. But this absence of consciousness from the constructing, and the consequent faith in the realistic value of science, determine the positions and the doctrines which produce the consequences I have deplored. For he who establishes a school and enacts its regulations takes as a model his own science, without at all being aware that it is only his own. It becomes therefore the content of the institution and determines its method. But a teacher who does not feel inclined to teach that given science and to adopt that special method creates his own ideal, which is but the projection of his personal culture; and unable to account critically for the intrinsic connection existing between his ideal and his personality, he too _fingit creditique_. He believes that the school authority has erred, and that Science, as he understands it, must be kept distinct from the official doctrines. But in his mind his science is not his own. It is, he is confident, that Sovereign Science which by his method and through his cult must enlighten the school over which he rules. And so at the point of arrival where the realistic conception of methods must work, it is found to be effective notwithstanding the rebuffs of reality, and it works. It works and it acts in the only way that it is possible for it to act, namely, by going amiss. It fails and will always continue to fail, not so much because every pupil has his own personality and will have his own particular culture with its corresponding method, but especially because whatever the number of the pupils in a school, the human mind knows of no culture which is not also its own free development, its autonomous ethical becoming. A science, which is supposed to exist before the spirit, becomes a thing, and will never again be able to trace its way back to the spirit. By presupposing science, teachers materialise the culture in whose development education consists; and this materiality of a culture known to teachers renders impossible that other culture which is unknown to teachers, which is going to be not theirs, but the pupils', for whom they work and in whose behalf the school was instituted.