Believe nothing, O monks, just because you have been told it, or it is commonly believed, or because it is traditional or because you yourselves have imagined it. Do not believe what your teacher tells you merely out of respect for the teacher. But whatsoever, after due examination and analysis, you find to be conducive to the good, the benefit, the welfare of all beings - that doctrine believe and cling to and take as your guide.
Do not overlook tiny good actions, thinking they are of no benefit; even tiny drops of water in the end will fill a huge vessel. Do not overlook negative actions merely because they are small; however small a spark may be, it can burn down a haystack as big as a mountain.
Do not believe in anything simply because you have heard it. But after observation and analysis, when you find that anything agrees with reason and is conducive to the good and benefit of one and all, then accept it and live up to it.
The Truth is not Arbitrary or a Matter of Opinion, but can be Investigated, and Those who Earnestly Search for the Truth will Find It. The Truth is Hidden to the Blind, but he who has the Mental Eye Sees the Truth.