The Buddhas, the World-Honored Ones, for one great cause alone appear in the world. The Buddhas, the World-Honored Ones, appear in the world because they wish to cause the beings to hear of the Buddha's knowledge and insight and thus enable them to gain purity. They appear in the world because they wish to demonstrate the Buddha's knowledge and insight to the beings. They appear in the world because they wish to cause the beings to understand. They appear in the world because they wish to cause the beings to enter into the path of the Buddha's knowledge and insight.
If you want to understand the causes that existed in the past, look at the results as they are manifested in the present. And if you want to understand what results will be manifested in the future, look at the causes that exist in the present.
Do not accept anything simply because it has been said by your teacher, or because it has been written in your sacred books, or because it has been believed by many, or because it has been handed down by your ancestors. Accept and live only according to what will enable you to see truth face to face.
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.
All the holy words you read and all the holy words you speak are as nothing if you do not act upon them. Even if you read little and say little but live the right way, forsaking craving, hatred and delusion, you will know the truth and find calmness and will show others the path.