St. Anatoly of Optina: God Himself lives in that man who has a peaceful heart...

God Himself lives in that man who has a peaceful heart. 

Above all: consider yourself worse than everyone, seek neither love nor honor from anyone, but have them yourself for everyone - thus you will obtain peace. But as soon as you want others to notice the goodness and virtue in you, then say good-bye to spiritual peace.

St. Anatoly of Optina