The works of Richard David Precht, written at the intersection of psychology and philosophy, have been translated into 25 languages, published with a total circulation of more than a million copies, and have been included in the bestseller lists of all European countries. Psychology of love. One of the most common topics in world philosophy. So why? Richard David Precht's book, written on this “hackneyed” topic, sells in huge numbers and enjoys enormous success throughout Europe? What, in his opinion, is this feeling - the most vivid of all that is available to man?