Chapter 19

A man who knows that the earth is round but lives among men who believe it to be flat ought to hammer in his doctrine of the earth’s roundness up to the point of arrest, imprisonment, or even death. Reality will confirm him, and he is not so much testifying to the world as it is—which is worth nothing—as to Him who made the world, and Who is worth more than all things. And, as it seems to me, a man ought to do this even about the truths not so very important, but he should observe some proportion between them and t…