The key point is to learn quotes that will be useful. Sort your quotes into topics, where the topic heading is something that an exam question might ask about. Then work the other way, choosing a quote and seeing how many topics you can use it for. Here's an example:"So we beat on, boats against the current, borne back ceaselessly into the past."--Freedom/the American Dream--Memory/The past--Futility/Hope--Style (alliteration and rhythm)You will quickly discover which quotes are the most useful, and this exercise will also help you to remember them. You should end up with a manageable list of versatile quotes to learn, which you can use to address any question the exam might ask.