Do not believe in anything simply because you have heard it. Do not believe in anything simply because it is spoken and rumoured 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 and 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.
That quote is attributed to Siddhartha Gautama (aka. the Buddha). It’s very progressive thinking from around 1500 years ago.
I admire Buddhist philosophy for its focus on personal responsibility (for knowledge and actions). This contrasts greatly with Abrahamic religions‘ philosophies, which tend to focus on faith in external sources (eg. texts, organisations, a god).
However, (given the above quote) I find it strange that Buddhist religions tend to include supernatural aspects. Chiefly a belief in reincarnation, which I doubt would satisfy independent and objective scrutiny.