Excellent book. Reads quickly and well. Many examples that help fix the main ideas. I put it into practice every day and even though "we know" a lot of these things ... it's very valuable to read and reread them to be aware and remember to act on! Ex .: do not waste a minute of your precious time to consider your enemies. You too would their pleasure at the same time, you get a lot of trouble and lose time. Concentrate on what is going well and those who love you.
