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.
The Tathagatha... is the originator of the path unarisen before, the producer of the path unproduced before, the declarer of the path undeclared before. He is the knower of the path, the discoverer of the path, the one skilled in the path. And his disciplines now dwell following that path and become possessed of it afterwards.
When a monk is an arahant, with his fermentations ended - one who has reached fulfillment, done the task, laid down the burden, attained the true goal, totally destroyed the fetter of becoming, and is released through right gnosis - the thought doesn't occur to him that 'There is someone better than me,' or 'There is someone equal to me,' or 'There is someone worse than me.'
Believe not because some old manuscripts are produced, believe not because it is your national belief, believe not because you have been made to believe from you childhood, but reason truth out, and after you have analyzed it, then if you find it will do good to one and all, believe it, live up to it and help others live up to it.
Let yourself be open and life will be easier. A spoon of salt in a glass of water makes the water undrinkable. A spoon of salt in a lake is almost unnoticed.