I was wrong about Christianity. I was wrong about Gnosticism. I was wrong about Buddhism. But each time I was less wrong.
True rational consistency does not consist in stereotyping our beliefs and views, and in refusing to make any improvements lest we be guilty of change.
True rational consistency means holding our minds open to receive the rays of truth from every source, and in changing our beliefs as often and as fast as we obtain further information. This way of life alone accords with the claim of being rational.
No one should be afraid to change their beliefs in conformity with increasing knowledge. Such a fear would keep the world, at best, at a perpetual standstill on all subjects of inquiry, including science. Such a fear would mean all improvement would be prevented. The quest for truth would be aborted.