Why high performers make assertions: The difference between insights, suggestions, and assertions

Another crucial question is, Do I produce results as a decision maker or as an adviser? A great many people perform best as advisers but cannot take the burden and pressure of making the decision. A good many other people, by contrast, need an adviser to force themselves to think; then they can make decisions and act on them with speed, self-confid

How do you know that your insight is correct? How do you know it’s something worth pursuing?