Know-it-alls have a lot to learn. You never know as much as you think you do.

One of the biggest dangers with investing is over-confidence or the addictive nature of doing well.

This is hard-wired into human beings.

It is all about maintaining a sense of perspective, and sometimes we need to remind ourselves that we should guard against over-confidence as much as risk aversion.

You never know as much as you think you do.

Always try and see things from a new or different perspective.  It can be quite developmental.