And someday when the descendants of humanity have spread from star to star, they won’t tell the children about the history of Ancient Earth until they’re old enough to bear it; and when they learn they’ll weep to hear that such a thing as Death had ever once existed!

Moore's Law of Mad Science: Every eighteen months, the minimum IQ necessary to destroy the world drops by one point.

Rationality is the master lifehack which distinguishes which other lifehacks to use.

If people got hit on the head by a baseball bat every week, pretty soon they would invent reasons why getting hit on the head with a baseball bat was a good thing.

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

Like that's the only reason anyone would ever buy a first-aid kit? Don't take this the wrong way, Professor McGonagall, but what sort of crazy children are you used to dealing with?" "Gryffindors," spat Professor McGonagall, the word carrying a freight of bitterness and despair that fell like an eternal curse on all youthful heroism and high spirits.

If you are equally good at explaining any outcome, you have zero knowledge.