The Etherisation of the Blood — Rudolf Steiner

Wherever we, as human beings, have striven for knowledge, whether as mystics or realists or in any way at all, the acquisition of self-knowledge has been demanded of us. As has been repeatedly emphasized on other occasions, however, this knowledge of the human soul is by no means as easy to achieve as many people believe—anthroposophists sometimes among them. The anthroposophist should be constantly aware of the hindrances he will encounter in his efforts. The acquisition of self-knowledge is absolutely essential, however, if we are to reach a worthy goal in world existence and if our actions are to be worthy of us as members of humanity.