The tenet systems are used in monasteries and colleges to teach Buddhist philosophy in a systematic and progressive fashion, each philosophical view being seen as more subtle than its predecessor. Therefore, the four tenets can be seen as a gradual path from a rather easy-to-grasp, "realistic" philosophical point of view, to more and more complex and subtle views on the ultimate nature of reality, culminating in the philosophy of the Mādhyamikas, which is widely believed to present the most sophisticated point of view. Non-Tibetan scholars point out that historically, Madhyamaka predates Yogacara, however.