"If some kind of hurt or harm is caused to others, we should make an attempt to help them by doing some service. It is not only by work and by keeping our surroundings clean that you can do service. You can do service by your words as well. With a good word, you can soothe their hearts, and by doing good deeds you can soothe their minds. Therefore, by using good words and doing good work, you will give comfort to others and this is good service." 

-Sathya Sai Baba, “Service To Man Is Service To The Lord” Summer Showers in Brindavan 1973

http://www.sssbpt.info/summershowers/ss1973/ss1973-08.pdf

"Anger is another enemy of health. It injects poison into the blood stream and brings about profound transformation which damages it..... Another cause of ill-health is vice and vile conduct. People believe that a wicked person need not be a diseased person but most diseases are mental illness, fundamentally.

Doctors, too, have to deal with patients sweetly and softly and consider their profession as one calling for dedication to their fellowmen. It is best to preserve one's health by good thoughts and good deeds. It is best to be vigilant about food habits. Coconut kernel, coconut water, sprouting pulses, uncooked or half cooked vegetables and greens are good for health."

-Sathya Sai Baba, “Good Health and Goodness” Discourse, 30 September 1981

 http://www.sssbpt.info/ssspeaks/volume15/sss15-21.pdf