Social progress takes effect through the replacement of all institutions by new ones; and since every institution involves the recognition of the duty of conforming to it, progress must involve the repudiation of an established duty at every step.
Whenever the strength of a belief strongly steps into the foreground, we must infer a certain weakness of demonstrability and the improbability of that belief.
Now is the dramatic moment of fate, Watson, when you hear a step upon the stair which is walking into your life, and you know not whether for good or ill.