The best stock to buy is the one you already own.
That's not to say there's no such thing as an overvalued market, but there's no point worrying about it.
When you start to confuse Freddie Mac, Sallie Mae and Fannie Mae with members of your family, and you remember 2,000 stock symbols but forget the children's birthdays, there's a good chance you've become too wrapped up in your work.
Charts are great for predicting the past.
Long shots almost always miss the mark.
There is always something to worry about. Avoid weekend thinking and ignoring the latest dire predictions of the newscasters. Sell a stock because the company's fundamentals deteriorate, not because the sky is falling.