Want some more motivation for your language learning? How about cash money? From the International Business Times:
Job seekers with bilingual skills could look forward to a profusion of opportunities in the coming year, according to various reports and company hiring plans.A profusion? If that's not so much hyperbole, that sounds pretty good, given that jobs aren't exactly easy to come by at the moment.
[T]he need for transactional knowledge of languages has become very important in both private and government sectors. … Strangely however, … while proficiency in languages—especially in Chinese and Spanish—seems to be among the most critical skills likely to be sought by recruiters over the next decade, very few workers had plans to invest in language instruction.Speaking just from my own personal experience, foreign-language abilities are a huge asset in a job search; from my first college internship to my current job, language skills were a crucial part of my sell—and often a prerequisite to even get a position.
To look at specific languages, the article flags Chinese and Spanish. Chinese is in strong demand just about everywhere the world over, and the article above focuses on the U.S., so Spanish being a selling point is hardly a surprise. The article is aimed at English speakers, so they're assuming you already speak English, but for non-English speakers of course English remains the language most likely to be useful in a job search. In Japan, hiring non-Japanese speakers used to be a necessary evil, but—at least in the legal industry—it's getting harder and harder to find positions that don't require Japanese; indeed, I hear that the Japanese firm I used to work at is now putting more emphasis on Japanese language skills for it's non-Japanese attorneys and indeed refusing to promote those without the requisite skills.
And I could of course go on and on right down the list of languages representing the largest percentages of world GDP. Suffice it to say that if you don't already know a second language and aren't learning one, you're going to remain at a disadvantage.