You can't see the future through a rearview mirror

Never invest in a company without understanding its finances. The biggest losses in stocks come from companies with poor balance sheets.

There are substantial rewards for adopting a regular routine of investing and following it no matter what, and additional rewards for buying more shares when most investors are scared into selling.

More money is lost anticipating the changes in the overall stock market than any other way of investing.

Gentlemen who prefer bonds don't know what they're missing.

The list of qualities (an investor should have) include patience, self-reliance, common sense, a tolerance for pain, open-mindedness, detachment, persistence, humility, flexibility, a willingness to do independent research, an equal willingness to admit mistakes, and the ability to ignore general panic.

Never buy anything that you can't illustrate on the back of a napkin.