Semanticality
Wittgenstein replied to Nietzsche, "It's all semantics, my confused friend. What does 'that which does not kill' mean? What does 'us' mean? What does 'stronger' mean? God is in the details. For instance, if 'that which does not kill' means 'nothing' and 'us' means 'everything,' as arguably there is no actual separation or difference whatsoever, and if 'stronger' means 'more developed,' then the answer to your philosophical mystery is 'most certainly' - for everything keeps evolving; the force of evolutionary growth exceeds the force of evolutionary decay. But of course, this is but one of an infinite number of answers to your question, all of which contingent upon the precise definition of each term within your semantic equation." Nietzsche laughed.