"The time will come, when the task of a doctor will not be to treat the body but to heal the mind, which in turn will heal the body. In other words, the right doctor will be philosopher and teacher and it will be his concern to keep the person healthy and not to start treating the body when it has already become sick. The true doctor will not only treat the body with medication, but rather treat the mind with principles. He will teach people that good humor, goodwill, noble deeds, love and grace are just as beneficial for the body as for the mind and that a joyous heart is the best medicine. Positive, pure thoughts are the premise for purity of the body, for inner harmony and balanced serenity."

Waldo Trine (American philosopher, 1899)