George Santayana: A man is morally free when … he judges the world, and judges other men, with uncompromising sincerity. - Nassim Nicholas Taleb

The health benefits of the "Mediterranean diet" aren't in the food: people spend their lives climbing stairs and steep hills.

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.

One useful trick, I discovered, is to avoid listening to the question of the interviewer, and answer with whatever I have been thinking about recently. Remarkably, neither the interviewers nor the public notices the absence of correlation between question and answer.