(en) Frederic et Mary Ann Brussat, Book review : : « Even though it is necessary in the beginning to have a strong will in order to develop love and compassion, will is not sufficient to develop these altruistic attitudes limitlessly. It is important to join the practice of love and compassion with the practice of insight. Even if you seek to help someone out of concern, without insight you cannot be very clear about what benefit will come of your efforts. A combination is needed: a good human heart as well as a good human brain. Working together, we can achieve a lot. »