Do not neglect medical treatment when it is necessary, but
leave it off when health has been restored.... Treat disease through diet, by
preference, refraining from the use of drugs; and if you find what is required
in a single herb, do not resort to a compounded medicament. Abstain from drugs
when the health is good, but administer them when necessary.
- Baha’u’llah (Cited in J. E. Esslemont, ‘Bahá'u'lláh and the New Era’; The Compilation of
Compilations, vol. I, Some Aspects of Health, Healing, Nutrition and Related
Matters)