The quality of the outcome casts a shadow over our ability to see the quality of the decision. - Annie Duke

We are all trying to defend ourselves against how we imagine other people are going to judge us.

Here's a secret: All guesses are educated guesses because there is almost no estimate you could make about which you literally know nothing.

The second is that making a plan for when to quit should be done long before you are facing the quitting decision. It recognizes, as Daniel Kahneman has pointed out, that the worst time to make a decision is when you're "in it."