Human Intervention, Natural Selection, and G-d

Rabbi Steinsaltz cites R' Nachman from Breslav's complex opinion regarding the advisability of seeking medical treatment. The Rabbi suggests that ill people should indeed seek medical treatment and quotes a source from the Talmud supporting this idea which states that people should not live in a town that does not have a doctor. He concludes by arguing that rather than being viewed as a destroyer of nature, man should be viewed as having an obligation to perfect nature.