Should you cite Wikipedia?

The short answer is no, but I think that Wikipedia is an excellent first stop on your way to find better sources.

Move towards the source: Ideally you should cite primary and secondary sources in your work, but Wikipedia might be considered tertiary or even more remote. However, most Wikipedia entries are compiled by knowledgeable human beings who are aware of primary and secondary sources, and prepare excellent reference sections.

Even Wikipedia recommends that you don’t cite them: