Old ideas are continually being slain by new facts. There is nothing stable in the conclusions of the mind, and it is impossible that there ever should be unless we hold that the universe is made to the measure of the human mind, an assumption for which nothing in the past gives any warrant.
One form of religion perpetually gives way to another; if religion did not change it would be dead. ... Each time the new ideas appear they are seen at first as a deadly foe threatening to make religion perish from the earth; but in the end there is a deeper insight and a better life with ancient follies and prejudices gone.
