The journeys
Hippocrates also gained considerable experience from his travels. Well-travelled, he visited Thrace, Thassos, Delos, Macedonia, Thessaly, Ionia and Egypt. During these journeys, which are estimated to have lasted around 12 years, he collected a wealth of information about nature, climate, the way of life of each region's habitats, the diseases that afflicted them and the effect of the environment on people.
Back on Kos
Hippocrates returned to his island rich in experience. He took over the Medical School of Kos and began teaching. He applied new therapeutic methods, after having condemned witchcraft, magic and superstitions. His teacher and guide was Mother Nature: 'Nature is sufficient in everything for everyone'.
He considered medical science to be closely linked to philosophy. For him, a competent doctor can only be one who has the ability to reflect. "a doctor that is also a philosopher, becomes perfect". Thus doctors had to be patient, kind and unkind, discreet, receptive, modest, with faith in God and love for man.