Full Idea
Do not seek to know Brahman by arguments, for arguments are idle and vain.
Gist of Idea
Do not seek to know Brahman by arguments, for arguments are idle and vain
Source
Anon (Upan) (The Upanishads [c.950 BCE], 'Brihadaranyaka')
Book Reference
'The Upanishads', ed/tr. Prabhavananda /Manchester [Mentor 1957], p.110
A Reaction
In the end all the religions seem to gravitate towards fideism and away from reasoned argument. The Catholic Church may be the last bastion of rational theology. Islam (10th cent), Protestantism (16th) and Judaism (17th) all rejected philosophy.