Wise advice on bias

It is easier to notice your mistakes in others than in yourself - Daniel Kahneman
The core message is that we have a built-in psychological blind spot for our own errors, while the same mistakes are glaringly obvious to us when we see them in other people.

Wise advice on expertise

Experts who acknowledge the full extent of their ignorance may be the only ones worth listening to - Daniel Kahneman
The core message is that the most reliable experts are those who are acutely aware of and transparent about the limits of their knowledge.