The Mission of Esoteric Science in Our Time

There are other contemporaries who say: It may well be that there is a supersensible world behind our sensory world; but human beings, with their powers and abilities, cannot know anything about such a supersensible world and therefore must not speak about it if science is to be discussed. This is an even more widespread opinion. People do not want to decide the question of the supersensible at all; they want to leave it completely undefined, to make it the object of a purely subjective, arbitrary belief as to whether there are senses that can perceive the supersensible. Human beings cannot possibly see beyond external nature, and they stray from the ground of knowledge and move into the realm of arbitrary belief when they seek to transcend the boundaries of external nature.