Remember, if you succeed in everything you try in life, you're living below your full potential and you should take up more difficult or daring things.

That which the truth nourishes should thrive.

- Every time someone cries out in prayer and I can't answer, I feel guilty about not being God. - That doesn't sound good. - I understand that I have a problem, and I know what I need to do to solve it, all right? I'm working on it. Of course, Harry hadn't said what the solution was. The solution, obviously, was to hurry up and become God.

A burning itch to know is higher than a solemn vow to pursue truth. To feel the burning itch of curiosity requires both that you be ignorant, and that you desire to relinquish your ignorance.

If you don’t sign up your kids for cryonics then you are a lousy parent.

You will find ambiguity a great ally on your road to power. Give a sign of Slytherin on one day, and contradict it with a sign of Gryffindor the next; and the Slytherins will be enabled to believe what they wish, while the Gryffindors argue themselves into supporting you as well. So long as there is uncertainty, people can believe whatever seems to be to their own advantage. And so long as you appear strong, so long as you appear to be winning, their instincts will tell them that their advantage lies with you. Walk always in the shadow, and light and darkness both will follow.

If you want to maximize your expected utility, you try to save the world and the future of intergalactic civilization instead of donating your money to the society for curing rare diseases and cute puppies.