I liked literature, except for the poetry part, and history involved a certain discipline and organization that I'd always found to be elusive," he recalled. "So that left philosophy, which didn't have a lot of facts or results to keep straight. As Hume puts it, any chain of reasoning more than three steps long can be ignored, so I became a philosopher and have been happy ever since.
[John Perry im Rahmen der "What matters to me and why"-Rede in Stanford]