Lord Voldemort feared Albus Dumbledore, everyone knew it, banked on it, prayed that it gave the Dark Lord pause enough to perhaps not lay siege to the entirety of wizarding England. However, it is far more appropriate to say that Tom Riddle feared Albus Dumbledore. For it isn't so difficult to instill fear in a child that will stay with them into adulthood. Fear is insidious, it burrows deep in the soul until it is irrational, until it usurps control of that very soul. And Albus Dumbledore sought nothing more than to control Tom Riddle, and fear was his weapon.
Fear is power. And power is fear. Few understood that. Voldemort is one of those. Dumbledore another. And, perhaps the most surprising of all, I understand the very nature of power. For you see, I understand that no one is entitled to power, there are only those that are willingly to take it. For there is no good or evil, light or dark, heaven or hell, mudblood or pureblood, there is only Power, and I, Hermione Granger, intend to take it by any means necessary. I will make the Dark Lord Voldemort fear me, and I will take the power he has stolen for my own.