Though business conditions may change, corporations and securities may change, and financial institutions and regulations may change, human nature re… - Benjamin Graham

Nothing in finance is more fatuous and harmful, in our opinion, than the firmly established attitude of common stock investors regarding questions of corporate management. That attitude is summed up in the phrase: "If you don't like the management, sell your stock." [...] The public owners seem to have abdicated all claim to control over the paid superintendents of their property

All the real money in investment will have to be made—as most of it has been in the past— not out of buying and selling but out of owning and holding securities, receiving interests and dividends therein, and benefiting from their long-term increases in value. Hence stockholder's major energies and wisdom as investors should be directed toward assuring themselves of the best operating results from their corporations. This in turn means assuring themselves of fully honest and competent managements.

Observation over many years has taught us that the chief losses to investors come from the purchase of low-quality securities at times of favorable business conditions.