An etymology of a biophilia is Latin and is also mentioned with the instinct of the preservation of race as defined in Japanese-English dictionaries, in American dictionaries it is defined as an appreciation for life. And also bio is life and philia is love in Greek. The preface of >The Revolution of Hope< as described by Erich Fromm who is an American philosopher is a reference for biophilia. He described >The love of life< which exists in most of us is a latent power that is mobilized and whose behavior can change and can bring about change when life is threatened by danger and is fully recognized.