'The Principles and Art of Cure by Homeopathy' is a must read book for anybody who wants to understand the philosophy of homeopathy in its real sense. The concepts like vital force, homeopathic laws, why homeopathic remedies act, the the dynamic action of drugs, the dose, the remedy reaction, second prescription, susceptibility and many such concepts have been discussed in this book which remain unknown to many homeopaths. Roberts is known to be one of the best homeopath who has attemptd and was successful in making these concepts clear for homeopaths or anybody who wants to know about this subject. The lectures on miasms given in this book are also worth a hundred times read.