If your beard is gray, produce heuristics/advice but explain the "why". If your beard is white, skip the why, just say what should be done. - Nassim Nicholas Taleb

If you hear a “prominent” economist using the word equilibrium, or normal distribution, do not argue with him; just ignore him, or try to put a rat down his shirt.

Distributive justice isn't taking from a risk taker who earned honorably, it is keeping his probability of losing it very high.

Montaigne also detected the agency problem, or why the last thing a doctor needs is for you to be healthy: “No doctor derives pleasure from the health of his friends, wrote the ancient Greek satirist, no soldier from the peace of his city, etc.” (Nul médecin ne prent plaisir à la santé de ses amis mesmes, dit l’ancien Comique Grec, ny soldat à la paix de sa ville: ainsi du reste.)