Practice brings true knowledge. Practice is the only criterion for testing truth. Believing in books is worse than having no books at all.

"Kalama Sutta" is taken from the "Avguttara Nikaya Three Episodes

65 Sutras" of the Pali Sutra Collection. The Kalama Sutra records the Buddha's teachings to the Kalama people.

In the sutra, the Buddha summarized ten principles:

1. Do not believe others’ oral traditions and legends as truth.

2. Don’t believe it to be true just because you follow the inheritance.

3. Don’t believe it as true just because it is news that is being circulated.

4. Don’t believe it to be true just because it is a religious classic.

5. Don’t believe something true just because it is based on logic.

6. Don’t believe it to be true just because it is based on philosophy.

7. Don’t believe something true just because it conforms to common sense and external reasoning.

8. Don’t believe something true just because it conforms to your own predictions, opinions, and concepts.

9. Don’t believe the speaker’s authority because of it.

10. Don’t believe him to be true just because he is a mentor or a master.

The "Kalama Sutra" highlights the fundamental spirit of Buddhism's pursuit of truth, reality, and verification, which is different from many other religions that are simply based on faith. The ten points mentioned above are shocking and enlightening words for the world.