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.
Freed by full realization and at peace, the mind of such a man is at peace, and his speech and action peaceful. He has no need for faith who knows the uncreated, who has cut off rebirth, who has destroyed any opportunity for good or evil, and cast away all desire. He is indeed the ultimate man.
I will purify my bodily actions through repeated reflection. I will purify my verbal actions through repeated reflection. I will purify my mental actions through repeated reflection. That's how you should train yourself.
When one drives away the negligent through vigilance, he climbs the heights of wisdom, and can see the suffering masses. Serene, you look upon the lost like one that stands on a mountain sees those that stand upon the plain.