Dreyfuss’s elegant facade hid a smoldering competitiveness and a quiet fury. (A partner in the firm asked him where he got his seemingly impregnable self-confidence in front of clients, which enabled him to stride into a room convinced his ideas should win the day. Dreyfuss, with an uncharacteristic candor, said, “I just walk in saying, to myself, you bastards, you bastards, you bastards.”)