He remains the exclusive trustee of a science that is useful to the public even without their knowledge, namely the critique of reason; for the latter can never become popular, but also has no need of being so; for just as little as the people want to fill their heads with fine spun arguments for useful truths, so just as lit tle do the equally subtle objections against these truths ever enter their minds; on the contrary, because the school inevitably falls into both, as does everyone who raises himself to speculation, the critique of reason a What he knows no more than I, he alone wants to seem to know.