Know in yourself

Do not be satisfied with hearsay or with tradition or with legendary lore or with what has come down in scriptures or with conjectures or with logical inference or with weighing evidence or with liking for a view after pondering over it or with someone else's ability or with the thought "The monk is our teacher." When you know in yourselves: "These things are wholesome, blameless, commended by the wise, and being adopted and put into effect they lead to welfare and happiness," then you should practice and abide in them.....

-The Buddha
Kalama Sutta