"All men, all living beings, are cells in the Body of God. Their origin, continued existence, and progress are all in God, by God, for God. The individual is a unit in this unity. There are no other aliens. When one is ill, all suffer. When one is happy, all are partners of that happiness. Faith in this truth is the fundamental equipment the Sevaks must acquire." 

-Sathya Sai Baba, “Equipment for Service” Discourse, 21 November 1986

 http://www.sssbpt.info/ssspeaks/volume19/sss19-25.pdf

"An intake of too much food is also harmful. Simply because tasty food is available and is being offered, one is tempted to overeat. We have air all around us but we do not breathe in more than we need. The lake is full but we drink only as much as the thirst craves for. But overeating has become a social evil, fashionable habit. The stomach cries out, 'Enough,' but the tongue insists on more, and man becomes the helpless target of disease. He suffers from corpulence, high blood pressure and diabetes. Moderate food is the best medicine to avoid bodily life. Do not rush to the hospital for every little upset. Too much drugging is also bad. Allow nature full scope to fight the disease and set you right. Adopt more and more the principles of naturopathy, and give up running around for doctors." 

-Sathya Sai Baba, “Food and Health” Discourse, 21 September 1979 

http://sssbpt.info/ssspeaks/volume14/sss14-31.pdf