Many ideas explained clearly and documented (studies to support it right there recognizes the leg of what scientific Ilios Kotsou) to put some order in concepts too often integrated into a mix a little "catch -all "(positive thinking and positive psychology, self-absorption and benevolence towards oneself and others). Numerous anecdotes make the book very much alive while not avoiding to address fundamental questions about our relationship to the world and how our mind. A reading both pleasant and serious! Thank you!