Investors should not treat an investment as a trade and sell based on short-term price gains if the original conviction in the company as a long-term investment remains valid.

“if if you own shares in a company and you have high conviction that the company is going to be a big success and the stock price is going to reward you, then who cares that it just went up a lot >> unless like what it could do. to turn from an investment to a trade, it would have to be an enormous g”