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.

You cannot rationalize what is not rational to begin with - as if lying were called truthization. There is no way to obtain more truth for a proposition by bribery, flattery, or the most passionate argument - you can make more people believe the proposition, but you cannot make it more true.

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.

Reality has been around since long before you showed up. Don't go calling it nasty names like 'bizarre' or 'incredible'. The universe was propagating complex amplitudes through configuration space for ten billion years before life ever emerged on Earth. Quantum physics is not 'weird'. You are weird.

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

You are personally responsible for becoming more ethical than the society you grew up in.

There's something in science like the shine of the Patronus Charm, driving back all sorts of darkness and madness.