th, and in fact discouraged them from doing so. He maintained that his teachings could be verified by direct insight and reasoning, by anyone willing to consider them and to follow the necessary path of self-discipline. Starting from a few basic assumptions, such as impermanence and dependent origination, he derived a complex and consistent system of philosophy which has stood for centuries. Later teachers have validated his claim that others could reach the same insights, and they have expanded upon his basic teachings with impressive intuitive depth and intellectual rigor. In this way the Buddhist teaching has itself become a kind of interactive and self-evolving process, much like its idea of pratityasamutpada. However, the end goal is still Nirvana, which is an experience ultimately beyond all concepts and language, even beyond the Buddhist teachings. In the end even the attachment to the Dharma, the Buddhist teaching, must be dropped like all other attachments. The tradition compares the teaching to a raft upon which one crosses a swift river to get to the other side; once one is on the far shore, there is no longer any need to carry the raft. The far shore is Nirvana, and it is also said that when one arrives, one can see quite clearly that there was never any river at all. ...
