From The Guardian:
Kindness was mankind's “greatest delight”, the Roman philosopher-emperor Marcus Aurelius declared, and thinkers and writers have echoed him down the centuries. But today many people find these pleasures literally incredible, or at least highly suspect. An image of the self has been created that is utterly lacking in natural generosity. Most people appear to believe that deep down they (and other people) are mad, bad and dangerous to know; that as a species – apparently unlike other species of animal – we are deeply and fundamentally antagonistic to each other, that our motives are utterly self-seeking and that our sympathies are forms of self-protectiveness.
Kindness – not sexuality, not violence, not money – has become our forbidden pleasure. In one sense kindness is always hazardous because it is based on a susceptibility to others, a capacity to identify with their pleasures and sufferings. Putting oneself in someone else's shoes, as the saying goes, can be very uncomfortable. But if the pleasures of kindness – like all the greatest human pleasures – are inherently perilous, they are none the less some of the most satisfying we possess.
In 1741 the Scottish philosopher David Hume, confronted by a school of philosophy that held mankind to be irredeemably selfish, lost patience. Any person foolish enough to deny the existence of human kindness had simply lost touch with emotional reality, Hume insisted: “He has forgotten the movements of his heart.” For nearly all of human history – up to and beyond Hume's day, the so-called dawn of modernity – people have perceived themselves as naturally kind. In giving up on kindness – and especially our own acts of kindness – we deprive ourselves of a pleasure that is fundamental to our sense of well-being.