We all make mistakes, it's true. Even stock analysts. (I know, you're shocked.) That's why, here at The Motley Fool, we believe in a policy of sharing our mistakes so that we all can learn from them; doing so makes us all better investors. In this video, Motley Fool analysts Morgan Housel and Matt Koppenheffer each talk about three moments when they made the wrong move -- or they made the right move, but not enough of it -- and they discuss what each of these errors taught them.