Hume on the origin of ideas

I thought Hume's chapter on the origin of ideas was very interesting and right off the start began talking about how memory can be distorted and there is always a difference between actually physical feeling, and the memory trying to recall the feeling or sensation. One of my favorite quotes out of the book was the last sentence of his first paragraph when he says "The most lively thought is still inferior to the dullest sensation," that quote makes a lot of sense to explain how he feels about thoughts vs. sensation.