The Aphorisms of Hippocrates constitute a reference work in the ancient medical-scientific treatment, an expression both of the Author and of his School. The work sets out the principles of the doctor's professional predisposition, aimed at a timely search for the causes and the most effective measures against diseases. These principles are unavoidable for the success of the treatment, as the disease is considered as the result of a psycho-physical imbalance of the patient. The work is presented in the various Greek, Arabic, Latin traditions, as well as the Italian translation.