Ask a question without naming anyone. The thinker best placed to answer is called up — matched against what they actually wrote, not against how famous they are, so the answer can come from someone you would not have thought to ask.
Useful when you have a question but not a reading list: describe the problem in your own words and let the corpus decide who has something to say about it.
Drawn from 170 thinkers — Philosophy (129), Psychology (31), Rhetoric (10).