I'm a sophomore undergraduate. I find myself reading mostly CS books. I like to read, but I haven't read much outside of non-fiction. I feel like I'm becoming too one-dimensional.
I want to be more open-minded, and am interested in Philosophy and History. I'd be grateful if someone could recommend me some books to read.
EDIT: Also consider subscribing to magazines. I love these: McSweeney's and Lapham Quarterly. McSweeneys is great for fiction and Lapham Quarterly for non fiction/historical perspectives on topics.
EDIT2: It is also important to remember that books are for you to enjoy and you should never feel forced to read books you don't want to read (except if it is required reading on a course) nor finish reading books just because you have started them (sunk cost fallacy).
But, there are advantages to reading whole texts, especially non-fiction. In today's day and age, we can search for terms and read precisely what we need for a paper. However, if you read the whole text you might read some unexpected gems that will enrich you. I find that reading the table of contents and skimming through paragraphs is a great way to avoid missing these gems. However, please note that "skimming" does not mean "move your eyes and pretend you are reading". You still need to make an effort to understand what the author is trying to convey. If you find yourself lost in thought after "skimming" through a couple of paragraphs then you are not doing it correctly. Ideally you want to summarize the paragraph to a single idea.
Often overlooked these days, Andy Grove > http://www.goodreads.com/book/show/242433.Andy_Grove