Employers who violate rules of fairness are punished by reduced productivity, and merchants who follow unfair pricing policies can expect to lose sales.

Lucky risk takers use hindsight to reinforce their feeling that their gut is very wise. Hindsight also reinforces others' trust in that individual's gut.

Optimistic people play a disproportionate role in shaping our lives. Their decisions make a difference; they are inventors, entrepreneurs, political and military leaders - not average people. They got to where they are by seeking challenges and taking risks.

It is the consistency of the information that matters for a good story, not its completeness. Indeed, you will often find that knowing little makes it easier to fit everything you know into a coherent pattern.

Groups tend to be more extreme than individuals.

When you are under time pressure for a decision, you need to follow intuition.

Establish a closing ritual. Know when to stop working. Try to end each work day the same way, too. Straighten up your desk. Back up your computer. Make a list of what you need to do tomorrow.