People think that there is an art to study or practice, but I say: Life itself is an art and if one can learn how to live, one has learned the only thing one really wants. Besides if one knows the psychology of human nature, one sees how very often one overlooked an act of human kindness to be done. Some natures there are who only need a word of human sympathy and of comfort, of kindness. If we do not listen to people at the right moment, very often we lose a battle which we might have won by having listened to him and having understood his wants. No strength is needed, only tact.