" According to Australian psychologist Dr. Russ Harris, author of The Happiness Trap: How to Stop Struggling and Start Living, “Thus, evolution has shaped our brains so that we are hardwired to suffer psychologically: to compare, evaluate, and criticize ourselves, to focus on what we’re lacking, to rapidly become dissatisfied with what we have, and to imagine all sorts of frightening scenarios, most of which will never happen. No wonder humans find it hard to be happy! "
― , Declutter Your Mind: How to Stop Worrying, Relieve Anxiety, and Eliminate Negative Thinking (Mindfulness Books Series Book 1)