Balance is needed in all ways on this quest. The student must not overvalue his emotional experiences, nor overconcentrate upon his metaphysical studies. He must strive for poise in all things and at all times. To lose it is to lose that integrality of character which is the mark of the true philosopher. The mournful consequences which follow are apparent in the fantastic cults which pass for mysticism, as well as in the fantastic movements which distort modern art; they can be seen also in the dry barren field of academic metaphysics as well as in the ugly earth-tied materialism of utilitarian science.
-- Notebooks Category 2: Overview of Practicies Involved > Chapter 5: Balance the Psyche > # 158