cords of a priori irrational disbelief) must not cry out at once, “Humbug! Falsehood!” but suspend judgment until he has the necessary experience and knowledge. 
To deny in ignorance is no better than to affirm in ignorance.Sri Aurobindo
Letters of Sri Aurobindo
4. Reason, Science and Yoga
Fragment ID: 221
See letter itself (letter ID: 474)
Sri Aurobindo — Roy, Dilip Kumar
August 25, 1934
□ Hide link-numbers of differed places
The abnormal abounds in this physical world, the supernormal is there also. In these matters, apart from any question of faith, any truly rational man with a free mind (not tied up like the rationalists or so-called free-thinkers at every point with the triple cords of a priori irrational disbelief) must not cry out at once, “Humbug! Falsehood!” but suspend judgment until he has the necessary experience and knowledge. To deny in ignorance is no better than to affirm in ignorance.
1 Sri Aurobindo to Dilip.- Vol. 2; CWSA, volume 28: triple
Current publication:
Sri Aurobindo. Letters on Yoga // SABCL.- Volume 22. (≈ 28 vol. of CWSA).- Pondicherry: Sri Aurobindo Ashram, 1971.- 502 p.
Other publications: