Sell is tough. It's the worst, it's the most difficult thing of all.

Don't sell on bad news.

Making a decision to sell is the most difficult thing we do.

Try to look for weaknesses in your thinking.

When it comes to investing, my suggestion is to first understand your strengths and weaknesses, and then devise a simple strategy so that you can sleep at night!

Basically, we try to buy value expressed in the differential between its price and what we think its worth.

Before selling, try to re-evaluate the company again and see where the stock sells in realtion to its book value.