Michael Campbell

“WHAT WOULD HAVE HAPPENED IF YOU HADN'T SAVED HIM?
"Yes! The sun would have risen just the same, yes?"
NO
"Oh, come on. You can't expect me to believe that. It's an astronomical fact."
THE SUN WOULD NOT HAVE RISEN.
...
"Really? Then what would have happened, pray?"
A MERE BALL OF FLAMING GAS WOULD HAVE ILLUMINATED THE WORLD.”
― Terry Pratchett, Hogfather

“The philosopher Didactylos has summed up an alternative hypothesis as "Things just happen. What the hell".”
― Terry Pratchett, Hogfather

“He shook his head pityingly. “This, more than anything else, is what I have never understood about your people. You can roll dice, and understand that the whole game may hinge on one turn of a die. You deal out cards, and say that all a man's fortune for the night may turn upon one hand. But a man's whole life, you sniff at, and say, what, this naught of a human, this fisherman, this carpenter, this thief, this cook, why, what can they do in the great wide world? And so you putter and sputter your lives away, like candles burning in a draft.”
“Not all men are destined for greatness,” I reminded him.
“Are you sure, Fitz? Are you sure? What good is a life lived as if it made no difference at all to the great life of the world? A sadder thing I cannot imagine. Why should not a mother say to herself, if I raise this child aright, if I love and care for her, she shall live a life that brings joy to those about her, and thus I have changed the world? Why should not the farmer that plants a seed say to his neighbor, this seed I plant today will feed someone, and that is how I change the world today?”
“This is philosophy, Fool. I have never had time to study such things.”
“No, Fitz, this is life. And no one has time not to think of such things. Each creature in the world should consider this thing, every moment of the heart's beating. Otherwise, what is the point of arising each day?”
― Robin Hobb, Royal Assassin

“Because no man wants to be a coward in front of a cheese.”
― Terry Pratchett, Wintersmith