“We have found a strange footprint on the shores of the unknown. We have devised prodound theories, one after another, to account for its origin. At last we have succeeded in reconstructing the creature that made the footprint. And lo! It is our own.”
From Arthur Eddington, English Astronomer, cited in Dennis Overbye’s thoughful and well-written book, “Einstein in Love: A Scientific Romance” (Viking, 2000).