• Do not believe just because it is a tradition maintained by oral repetition.
• Do not believe just because it is an unbroken succession of practice.
• Do not believe merely because it is hearsay.
• Do not believe just because it is in the scriptures.
• Do not believe just because it fits with one’s point of view.
• Do not believe just because it is correct on the ground of metaphysical theories.
• Do not believe just because it appeals to one’s consideration.
• Do not believe just because it agrees with one’s opinions and theories.
• Do not believe just because the speaker appears believable.
• Do not believe just because the speaker is our teacher.

Kalamas, whenever you realize by yourselves that these are unwholesome, harmful or are condemned by wise  people, and whoever fully undertake or observe them, they will lead to uselessness or suffering, you should abandon them. Kalamas, whenever you realize by yourselves that these are wholesome, unharmful or are admired by wise people, and whoever fully undertake or observe them, they will lead to usefulness or happiness, you should undertake them.

*The Buddha’s discourse to the Kalamas on how to deal with doubtful matters.