I knew you meant human languages. I know a little conversational German, took French in high school and college, and took two classes of Classical Greek in college. I know a few words of Russian. As a teenager, I wanted to be a simultaneous translator, but I never got the opportunity to seriously pursue it. I feel better about only dabbling in human languages now that I also dabble in computer languages and it has allowed me to communicate with more people than learning French ever did. :-D