Are you like me and most other human beings? Do you believe these two assumptions? You think you know everything you need to know. You think you know more than most.

The danger of course is that you make assumptions and judgements and justify (rationalize)  actions about your life within the limited knowledge that you have. And, as you grow older, if you make no effort to update your thinking, you will begin to feel like you are being left out of society.

Just to survive requires very little effort and knowledge. So it appears to even a person with moderate success that he must be more knowledgeable than most. And, highly successful people sometimes credit themselves with all the glory, forgetting that success is not one person's efforts, but the confluence of many events and people.

The most important thing you can know is how and why you think a certain way. You have to understand how your past shaped you when you were a vulnerable dependent child. And, using that knowledge update your thinking so that you see through adult eyes.

Even the most brilliant genius is aware that he knows nothing compared to the amount of available knowledge. Having a high IQ doesn't count for anything if you don't realize that there is more that you "don't know you don't know" than your head could ever hold.

I remember reading that the man with the highest IQ in the world (read that as the US of course) was writing a book explaining everything. Good luck with that, man! Even the man with the highest IQ can delude himself into believing he has an answer to everything. I'd like to see how he explains all my thoughts, all my feelings, all my behaviours when he has no idea what is going on in my mind, or even his own, let alone everyone else. At last report he hadn't written a single useful page.

The best we can do is keep an open mind. Work boldly with the limited understanding we have. Seek to understand ourselves and the people around us. Know that we will make assumptions, pass judgement and rationalize our own behaviour but keep an open mind.
And to accept the world as it is.