Full context:   The presentation of the four truths as one of the most important teachings of the Buddha "has been [done] to reduce the four noble truths to a teaching that is accessible, pliable, and therefore readily appropriated by non-Buddhists." There is a great variety of teachings in the Buddhist literature, which may be bewildering for those who are unaware of this variety. The four truths are easily accessible in this regard, and are "readily [understood] by those outside the Buddhist traditions." For example Walpola Rahula's What the Buddha Taught, a widely used introductory text for non-Buddhists, uses the four truths as a framework to present an overview of the Buddhist teachings.