Do not believe anything simply because you have heard it.
Do not beileve anything simply because it is spoken or rumored by many.
Do not believe in anything because it is found written in your religious books.
Do not believe in anything merely on the authority of your teachers or elders.
Do not believe in traditions because they have been handed down for many generations.
But after observation and analysis, when you find anything that agrees with reason and is conducive to the good and benefit of one and all, then accept it and live up to it.
From the Buddha