अज्ञश्चाश्रद्दधानश्च संशयात्मा विनश्यति ।नायं लोकोऽस्ति न परो न सुखं संशयात्मनः ॥
ajñaścāśraddadhānaśca saṃśayātmā vinaśyatināyaṃ loko’sti na paro na sukhaṃ saṃśayātmanaḥ
The ignorant who has not faith, the soul of doubt goeth to perdition; neither this world, nor the supreme world nor any happiness is for the soul full of doubts.
Gītā 4·40In fact, it is true that without faith nothing decisive can be achieved either in this world or for possession of the world above, and that it is only by laying hold of some sure basis and positive support that man can attain any measure of terrestrial or celestial success and satisfaction and happiness; the merely sceptical mind loses itself in the void. But still in the lower knowledge doubt and scepticism have their temporary uses; in the higher they are stumbling-blocks: for there the whole secret is not the balancing of truth and error, but a constantly progressing realisation of revealed truth.