Be not misled by reports or tradition or common opinion. Be not misled by proficiency in the scriptures, nor by speculation and conclusions, nor by attractive theories and favorite ideas, nor by impressions of personal merits (of the teacher) and not by the authority of some master. But rather, Kalamas, when you discern yourselves: these things are unprofitable, these things are blameworthy, these things are censured by the wise; these things, when performed and undertaken are conducive to misfortune and sorrow, indeed do you then reject them.
…And when you discern yourselves: these things are profitable, these things are not blameworthy, these things are praised by the wise; these things, when performed and undertaken are conducive to good fortune and happiness, indeed do you then accept them.
— The Buddha