Boys," said Hermione Granger, "should not be allowed to love girls without asking them first! This is true in a number of ways and especially when it comes to gluing people to the ceiling!

Existential depression has always annoyed me; it is one of the world's most pointless forms of suffering.

The strength of a theory is not what it allows, but what it prohibits; if you can invent an equally persuasive explanation for any outcome, you have zero knowledge.

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

Through rationality we shall become awesome, and invent and test systematic methods for making people awesome, and plot to optimize everything in sight, and the more fun we have the more people will want to join us.

Litmus test: If you can't describe Ricardo's Law of Comparative Advantage and explain why people find it counterintuitive, you don't know enough about economics to direct any criticism or praise at "capitalism" because you don't know what other people are referring to when they use that word.

I don't want to rule the universe. I just think it could be more sensibly organised.