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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.

Benjamin Graham (1959). “The Intelligent Investor: A Book of Practical Counsel”
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.