[T]he reason why human understanding has been able to advance in the past, and may do so in the future, is that true insights are cumulative and reta… - Stanislav Andreski

The natural sciences did not advance in virtue of the universal appeal of rationality. Their theological, classicist and metaphysical opponents were not converted but displaced. All the ancient universities had to be compelled by outside pressure to make room for science; and most nations began to appreciate it only after succumbing to the weapons produced with its aid. To cut a long story short, scientific method has triumphed throughout the world because it bestowed upon those who practised it power over those who did not. Sorcery lost not because of any waning of its intrinsic appeal to the human mind, but because it failed to match the power created by science. But, though abandoned as a tool for controlling nature, incantations remain more effective for manipulating crowds than logical arguments, so that in the conduct of human affairs sorcery continues to be stronger than science.

Sacrifice has always been regarded as the most convincing proof of loyalty; and its most common form involves a foregoing of the use of some organic function, as in the case of celibacy or fasting. Of at least equal significance, however, is a sacrifice of the use of reason - credo quia impossibile - and the more incredible the assertion, the stronger the proof of the devotion manifested by its acceptance. The Catholic theologians are quite explicit about this, and openly say that by affirming what to the human reason appears absurd, a believer proves his love for God. Although they are never so frank about it, the secular sects make similar demands.

The most deadly agents of cultural infections are not the brazen cynics, but the sectarians prone to self-delusion and the timorous organization men anxious not to miss the band-waggon, who unquestioningly equate popularity and worldly success with intrinsic merit.