“Zombies can't believe the energy we waste on nonfood pursuits.”
“I don't believe in worrying. It's a waste of energy.”
“But if I can't change something, I don't waste energy on it.”
“We could power a city with this energy, but it'd be a waste.”
“Trying is never a waste of energy, giving up is always energy wasted!”
“Make it a rule of life never to regret and never to look back. Regret is an appalling waste of energy; you can't build on it; it's only good for wallowing in.”