Shakespeare, Sonnet CXVI (141). In this sonnet Shakespeare talks about the constancy of true love. "Love is not love Which alters when it alteration finds, Or bends with the remover to remove. O, no! it is an ever-fixed mark, That looks on tempests and is never shaken..."
I would guess: provd
The idea that a battle made Europe possible is plain stupid. Europe is a continent. It had and has many peoples in it. The Persian War was a minor and temporary influence in local terms - the eastern end of the Mediterranean. Durant making grandiose claims about the future of the continent hanging on a battle in Greece is plain stupid. Had the Persians taken over mainland Greece, the Greek cities would have in due course freed themselves. Persia itself was vulnerable as Alexander provd a century later.