Successful investing professionals are disciplined and consistent and they think a great deal about what they do and how they do it.

At heart, "uncertainty" and "investing" are synonyms.

The distinction between investment and speculation in common stocks has always been a useful one and its disappearance is cause for concern.

There is a close logical connection between the concept of a safety margin and the principle of diversification.

Only in the exceptional case, where the integrity and competence of the advisers have been thoroughly demonstrated, should the investor act upon the advice of others without understanding and approving the decision made.

Individuals who cannot master their emotions are ill-suited to profit from the investment process.

Before you invest, you must ensure that you have realistically assessed your probability of being right and how you will react to the consequences of being wrong.