 “The deepest principle in human nature is the craving to be appreciated.”
“The deepest principle in human nature is the craving to be appreciated.”- Psychologist William James [1842-1910]
His Harvard lectures were published in The Varieties of Religious Experience: A Study of Human Nature, which is available online here. 
 “The deepest principle in human nature is the craving to be appreciated.”
“The deepest principle in human nature is the craving to be appreciated.”