“Many persons of my acquaintance but half converted to homoeopathy have repeatedly begged me to publish still more
exact directions as to how this doctrine may be actually applied in practice, and how we are to proceed. I am astonished
that after the very particular directions contained in the Organon of Medicine more especial instructions can be wished
for……I am also asked, ‘How are we to examine the disease in each particular case?’ As if special enough directions were not
to be found in the book just mentioned.
Samuel Hahnemann.Preface to Materia Medica Pura.