It is usually wise to consult a physician, wiser still to consult a specialist. Why reject the knowledge they have accumulated, the experience they have gained? But blindly to follow their advice is quite another matter. Here a critical judgement is needed, for medicine is immensely far from being the perfect science that mathematics is.

-- Notebooks Category 10: Healing of the Self > Chapter 4: Healers of The Body and Mind > # 34