Live contemplating the body. Contemplate internally and externally. Contemplate the origination of things in the body. Contemplate the dissolution of things in the body.
Believe nothing because it is written in books. Believe nothing because wise men say it is so. Believe nothing because it is religious doctrine. Believe it only because you yourself know it to be true.
Men are tied up to their families and possessions more helplessly than in a prison. There is an occasion for the prisoner to be released, but householders entertain no desire to be relieved from the ties of family. When a man's passion is aroused nothing prevents him from ruining himself. Even into the jaws of a tiger will he jump. Those who are thus drowned in the filth of passion are called the ignorant. Those who are able to overcome it are saintly Arhats.
Truths cannot be acquired from words out of other people's mouths. Before Truths can be internalized, they must come from one's own realizations and practices. Through a lifetime of personal practice, human beings are capable of revealing all of the secrets of the cosmic essence. You are your own best judge.
The Tathagatha... is the originator of the path unarisen before, the producer of the path unproduced before, the declarer of the path undeclared before. He is the knower of the path, the discoverer of the path, the one skilled in the path. And his disciplines now dwell following that path and become possessed of it afterwards.