The life of a thinking man will probably be divided into two parts — the first in which he desires to exterminate modern thinkers, and the second in which he desires to watch them exterminating each other. … Suppose, for instance, there is an old story and a new skeptic who is skeptical of the story. We have only to wait a little while for a yet newer skeptic who is skeptical of the skeptic. He will probably find the old notion actually a help in his new notion. This process is an abstract truth applying to anything, apart from agreement or disagreement.
