This book is about two things. Firstly, it shows what there is undeniably curable in disease, and how that curative properties of medicines are to be distinctly perceived and employed for curative purposes. Secondly, it is about Dr Hahnemann. The histories of many men who have risen to eminence in particular branches of science teach us that they have done so under the most unfavourable circumstances and in spite of the greatest obstacles thrown in their way by fortune and by their own natural guardians. Hahnemann belonged to this class of great men.