Marks explains why conventional thinking can never produce unconventional results, and why the path to great investing requires not just being different but being different and right—a combination that demands both insight and the courage to act on it.

In the depths of the 2008 financial crisis, Buffett published a landmark op-ed declaring he was moving his personal portfolio entirely into American stocks. His core argument: be greedy when others are fearful, and fearful when others are greedy.