Full context:   According to Carol Anderson, the four truths have "a singular position within the Theravada canon and tradition." The Theravada tradition regards insight in the four truths as liberating in itself. As Walpola Rahula states, "when the Truth is seen, all the forces which feverishly produce the continuity of samsara in illusion become calm and incapable of producing any more karma-formations [...] he is free from [...] the 'thirst' for becoming."[web 27][note 47] This liberation can be attained in one single moment, when the four truths are understood together. Within the Theravada tradition, great emphasis is placed upon reading and contemplating The Discourse That Sets Turning the Wheel of Truth, and other suttas, as a means to study the four noble truths and put them into practice. For example, Ajahn Sumedho states: The Dhammacakkappavattana Sutta, the Buddha's teaching on the Four Noble Truths, has been the main reference that I have used for my practice over the years. It is the teaching we used in our monastery in Thailand. The Theravada school of Buddhism regards this sutta as the quintessence of the teachings of the Buddha. This one sutta contains all that is necessary for understanding the Dhamma and for enlightenment."