You probably would not choose to dine at a restaurant whose chef always ate elsewhere. I do eat my own cooking, and I don't "dine out" when it comes to investing.

You need humility to say 'I might be wrong.'

The way to maximize outcome is to focus on the process.

As Graham, Dodd and Buffett have all said, you should always remember that you don't have to swing at every pitch. You can wait for opportunities that fit your criteria and if you don't find them, patiently wait. Deciding not to panic is still a decision.

Do not accept principal risk while investing short-term cash: the greedy effort to earn a few extra basis points of yield inevitably leads to the incurrence of greater risk, which increases the likelihood of losses and severe illiquidity at precisely the moment when cash is needed to cover expenses, to meet commitments, or to make compelling long-term investments.

When people give away stocks based on forced selling or fear that is usually a great opportunity.

It's incredibly important to note that when you don't allow failure, you get more failure.