So spoke the exalted Buddha :

You should not beleive in teachings just because they are being proclaimed; neither should You beleive in old traditions just because of their venerable age; neither in rumours that are just rumours ; neither in scriptures only because they have been written by wise men ; neither in imaginations that we think have been given to us from angels (through mental inspiration); neither should You beleive in the conclusions from arbitrary assumptions or into that which seems to be a logical and causal context; neither just into the authority of our teachers and masters :

But we must beleive if the scriptures, the teachings or the proclaimed is confirmed by our realizing reason.
Therefore i taught You not to beleive only because You have heared of something but to beleive, to realize and then to act in responsibility.

H.P.Blavatsky, Secret teachings III/401

Don't go by gossip and rumor, nor by what's told you by others, nor by what you hear said, nor even by the authority of your traditional teachings. Don't go by reasoning, nor by inferring one thing from another, nor by argument about methods, nor from liking an opinion, nor from awe of the teacher and thinking he must be deferred to. Instead, when you know from within yourselves that certain teachings are not good, that when put into practice they lead to loss and suffering, you must then trust yourselves and reject them.

- Kalama Sutta (Anguttara Nikaya Vol. 1, 188-193 P.T.S. Ed.

The "Guru Granth Sahib" says too, "Do not even beleive in an competent master as long as You have not seen it yourself".

"Buddhism has the characteristics of what would be expected in a cosmic religion for the future: it transcends a personal God, avoids dogmas and theology; it covers both the natural & spiritual, and it is based on a religious sense aspiring from the experience of all things, natural and spiritual, as a meaningful unity"
"If there is any religion that would cope with modern scientific needs it would be Buddhism."
-- Albert Einstein --