I remind myself of Einstein's remark that common sense is nothing but a collection of misconceptions acquired by age 18.

Luck is the grand equalizer.

When you beat up someone physically, you get excercise and stress relief; when you assault him verbally on the Internet, you just harm yourself.

If you sat with a pencil and jotted down all the decisions you've taken in the past week, or, if you could, over your lifetime, you would realize that almost all of them have had asymmetric payoff, with one side carrying a larger consequence than the other. You decide principally based on fragility, not probability. Or to rephrase, You decide principally based on fragility, not so much on True/False.

A mistake is not something to be determined after the fact, but in the light of the information until that point.

Experience is devoid of the cherry-picking that we find in studies.

Don't disturb complicated systems that have been around for a very long time. We don't understand their logic. Don't pollute the planet. Leave it the way we found it, regardless of scientific 'evidence'.