Emotions are contagious. We've all known it experientially. You know after you have a really fun coffee with a friend, you feel good. When you have a rude clerk in a store, you walk away feeling bad.
Daniel GolemanOur emotional mind will harness the rational mind to its purposes, for our feelings and reactions-- rationalizations-- justifying them in terms of the present moment, without realizing the influence of our emotional memory.
Daniel Goleman