Carl Jung Quotes about Attitude
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Carl Gustav Jung, Meredith Sabini (2002). “The Earth Has a Soul: The Nature Writings of C.G. Jung”, p.188, North Atlantic Books
Carl Gustav Jung, Herbert Read, R. F.C. Hull (1954). “The practice of psychotherapy”, Bollingen
Carl Gustav Jung (1953). “Collected Works of C.G. Jung: The development of personality”