… we believe subjectively that we are possessed of far greater certainty about our attitudes than we actually have.
… consciousness is not what we generally think it is. It is not direct awareness of our inner world of thoughts and judgments but a highly inferential process that only gives us the impression of immediacy.
Philosopher Peter Carruthers insists that conscious thought, judgment and volition are illusions. They arise from processes of which we are forever unaware
Source: There Is No Such Thing as Conscious Thought – Scientific American