How much knowledge of the Dharma do we need? Sangharakshita's answer might surprise some: 'a lot less than we think', but we need to use the knowledge we do have well. This is the teaching of the four main works in this volume. Based on seminars conducted in 1976 and 1978, each offers a lesson in how to think critically about Mahayana Buddhist teachings, and how to apply them to day-to-day life. They are The Way to Wisdom, on the five spiritual faculties; Living Ethically and Living Wisely, on Nagarjuna's Precious Garland, and Know Your Mind, which explores a Tibetan Abhidharma text.