The Time Lords really didn't like genocide. I'm not too keen on it myself. It's the potential you're killing off. What if, one day, there was a good Dalek? What if...
Neil GaimanSo you used to know everything?" She wrinkled her nose. "Everybody did. I told you. It's nothing special, knowing how things work. And you really do have to give it all up if you want to play." "To play what?" "This," she said. She waved at the house and the sky and the impossible full moon and the skeins and the shawls and clusters of bright stars.
Neil GaimanThe only advice I can give you is what you're telling yourself. Only, maybe you're too scared to listen.
Neil Gaiman