“Knowledge is power, but how you use that power defines whether you're good, or evil.”
“She had not yet decided whether to use her power for good...or for evil.”
“Its how we choose to use our powers that makes us good or evil.”
“I think a power to do something is of value. Whether the result is a good thing or a bad thing depends on how it is used, but the power is a value.”
“The peasants of all lands recognize power and they salute it, whether it's good or evil.”
“It wasn't because they had extraordinary powers, really, but because of how well they used the ordinary powers everyone had: the power of courage, the power of kindness, the powers of curiosity and knowledge.”