Kent strove throughout his career to uphold the principles of Classical Homeopathy. This is a publication of Kents Lectures on Homeopathic Philosophy, renowned since their appearance ninety years ago. Kent described this work as a commentary on the Organon not a replacement of it. The original lecture text is unchanged, but this edition is enriched with an index by homeopath Rachel Low & with the restoration of a compilation of questions which will allow the reader to test their understanding of the content.