One can't be a successful investor without a healthy dose of confidence. To commit your own and others' hard-earned capital requires conviction, and conviction requires confidence. But as with fine brandy or coffee ice cream, too much of a good thing can be problematic.

The consequences of overestimating a company and your ability to analyse it are greatly diminished when you're paying a lot less for it than your analysis shows it is worth.

In life, an abundance of confidence gives us higher motivation, persistence, and optimism and can allow us to accomplish things we otherwise might not have undertaken.

Whitney Tilson Quotes