No More Learning

The
speculative restriction of pure reason and its practical extension
bring it into that relation of equality in which reason in general can
be employed suitably to its end, and this example proves better than
any other that the path to wisdom, if it is to be made sure and not to
be impassable or misleading, must with us men           pass
through science; but it is not till this is complete that we can be
convinced that it leads to this goal.