Do not believe in anything simply because you have heard it. Do not believe simply because it has been handed down for many generations. Do not believe in anything simply because it is spoken and rumored by many. Do not believe in anything simply because it is written in Holy Scriptures. Do not believe in anything merely on the authority of Teachers, elders or wise men. Believe only after careful observation and analysis, when you find that it agrees with reason and is conducive to the good and benefit of one and all. Then accept it and live up to it.
Buddha - The Karma Sutra